21 Period Myths That Need To Be Addressed ASAP

From how the weather affects your cycle to syncing up with your friends.
|
Open Image Modal
Chatiyanon via Getty Images

There are a ton of questions about periods that exist out in the universe. For instance, is it true that spending time with a close female friend will cause your cycle to sync up with hers? Does your period really stop when you’re in water? And getting pregnant during your period is completely off the table, right?

You might be surprised at what’s fact and what’s fiction. Since knowledge is power ― especially when it comes to your body ― HuffPost asked some experts to set the record straight on questions like these and more. Here’s what you should know about your flow:

Do cramps get better with exercise?

Answer: They might.

You may have been told to hit the elliptical or go for a brisk walk to battle menstrual discomfort. Studies are inconclusive on whether this really alleviates the pain, but some experts say that getting your body moving does appear to help their patients cope.

“Each woman responds differently, but anecdotally I’ve seen exercise or movement reduce or eliminate cramps for most women,” said Nicole Jardim, a women’s health and period coach known to her clients as “The Period Girl.”

But don’t overdo it at the gym. “It’s important to honor the body’s need for rest and downtime during this time of the month,” Jardim added.

Can your period cause your voice to sound different?

Answer: Yes.

Strange but true! A 2011 study found “significant changes in voice characteristics during the time of menstruation,” according to researchers.

Should you avoid swimming in the ocean on your period because of an increased risk of shark attacks?

Answer: No. You’re fine.

“Sharks are attracted to blood, however, most women use tampons when swimming, which should protect from blood seeping out,” explained Jill L. Hechtman, an obstetrician-gynecologist and medical director at Tampa Obstetrics. She added that there are no published cases of shark attacks on women because of their period.

Does your period really stop in water?

Answer: No.

While we’re on the subject of water, let’s put this one to rest.

“Your uterine lining does not stop shedding while you’re in water, but period blood may temporarily slow down significantly or not flow out of the vaginal opening because the water stops it and the gravitational pull isn’t as strong as when you’re not in water,” Jardim explained.

Is it safe to ‘skip’ your period?

Answer: Yes.

It’s perfectly healthy to not get a period every month, Hechtman said. (And just think of the money saved on feminine hygiene products.)

“There are ways with certain hormonal treatments to safely and effectively skip your period, whether it’s with a birth control pill, IUD or other type of contraceptive,” Hechtman said.

However, if you’re sexually active and you normally get your period each month, if you skip it there’s a chance you might be pregnant. Take a test and consult a doctor if you think this may be the case. Other reasons your period may change include stress, dietary changes and activity level.

Can your period make you rack up credit card bills?

Answer: Yes ― and not just because you’re buying tampons.

If you’ve noticed that you’re more likely to splurge on those expensive shoes during “that time of the month,” you’re not alone. Research shows that women are more prone to impulsively spend money during the later part of their cycles.

“I have personally experienced this,” said Prudence Hall, founder and medical director of The Hall Center. She noted that this is also a way that PMS can manifest itself. “Women start to feel down during PMS so they go shopping to make themselves feel better,” she explained.

During your monthly cycle, can you bleed from other parts of your body?

Answer: Yes, but it’s somewhat rare.

Doctors once treated a 17-year-old girl who was experiencing bloody tears during her menstrual cycles. But before you freak out, know that this condition, called vicarious menstruation, is extremely rare.

Jardim noted, however, that women with endometriosis—“a painful condition that causes the tissue that lines the inside of the uterus to grow outside the uterus” ― can also experience nosebleeds, which are triggered by the same period hormones.

“This happens because endometriosis can grow in other areas including the lungs and nasal cavity,” Jardim explained.

Is it true that getting your period can trigger asthma symptoms?

Answer: Yes.

If you have asthma, you might notice that your symptoms worsen during that time of the month.

“Fluctuations in estrogen are partly to blame, but your body is also more sensitive to allergens and your lung capacity actually shrinks during your period,” said Jardim. This “perimenstrual asthma” affects between 19 percent and 40 percent of women with asthma.

Can you get pregnant during your period?

Answer: It’s possible.

“Sperm can remain viable after sex for approximately five days,” said Rachael L. Polis, a pediatric and adolescent gynecologist with Crozer-Keystone Health System.

Polis said the probability of getting pregnant during a menstrual cycle is low in a woman who has a 28-to-30-day (or longer) menstrual cycle. However, with shorter cycles, there is a greater chance of pregnancy.

“Ovulation determines pregnancy risk. Therefore, best to be safe and still use protection even during the menstrual cycle,” Polis said.

Can bleeding be a sign of early pregnancy?

Answer: It can.

“When an embryo implants into the uterine lining, this can lead to spotting (implantation bleeding),” explained Brittany Denny, a ProMedica OB-GYN.

Sometimes, women mistake this bleeding for an abnormally short and light period. “If you experience menstrual irregularities like this, don’t hesitate to take a home pregnancy test,” Denny said.

Does your cycle really sync up with your female friends’ cycles?

Answer: No, not really.

Some women swear that spending time with a female friend or roommate can cause this to occur. A 1971 study saw evidence of menstrual synchrony, however, a recent and more thorough study deemed cycle synching “very unlikely.”

Nadine Lyseight-Moodie, an OB-GYN with Dignity Health chalks hopping on the same cycle as your friends as “coincidence, happenstance, or plain old misery loves company.” Sorry, pals.

When you get your period, is your body cleaning itself out?

Answer: Definitely not.

“Getting your period is a sign that fertilization did not occur,” Hechtman said. “In the beginning of a cycle your hormone levels are increasing and the lining of your uterus is building up.”

If you ovulate and fertilization does not occur, your hormone levels drop, and the uterine lining sheds itself, resulting in your period. Then the whole process starts again.

Do you have to deal with heavy periods?

Answer: No. Get it checked out if it seems problematic.

“Heavy periods can be a sign of something wrong,” Hechtman said.

If your periods are abnormally heavy, she suggests getting them checked out by your OB-GYN. “Your doctor will take a thorough history and do a physical exam. They should be able to identify the issue, and treat the problem,” she said.

Is it bad to have sex during your period?

Answer: Definitely not.

It might get a little messy, but your cycle shouldn’t stop you from having fun with your partner if you’re both down for it.

“Your period can be a natural lubricant so there is also an added bonus!” said Navya Mysore, a family medicine doctor with One Medical in New York.

Another reason not to miss out? Orgasms can make your cramps feel better by “releasing pelvic congestion,” the blood flow in the pelvis, Hall said.

Do you experience brain fog during your period?

Answer: Yes.

According to Hall, a woman has low estrogen levels a few days before and during her period, as opposed to the rest of the cycle, when hormone levels are higher.

“With a low estrogen level during this part of her menstrual cycle, brain function can become less focused and more foggy,” Hall explained.

Can your period cause temporary anemia?

Answer: Sure can.

Polis said the average blood loss per menstrual cycle is 30 milliliters ― around two tablespoons ― but it can be higher. A chronic loss of greater than 80 milliliters can cause anemia.

“Most women are unable to quantify their blood loss through a measurement, but there are a few signs to look for,” Polis said. “Menstrual cycles that last longer than a week, require changing a pad or tampon every one to two hours, or result in passing clots greater than the size of a quarter, could all be indicative of heavy menstrual bleeding, and subsequent iron deficiency anemia.”

If you are experiencing any of these scenarios, it’s important that you talk to your doctor.

Will your period stop if you are too thin?

Answer: Yes.

“You need a certain body fat percentage and BMI to menstruate,” Hall said.

Women who lose weight and have a dangerously low body mass index (less than 18.5) may experience an absence of menstrual periods, which is called amenorrhea.

Is menstrual blood different than regular blood?

Answer: Nope.

“Blood is blood!” Hechtman said. “Sometimes it appears darker than others. The darker the blood, the older it is.”

Does the weather affect how severe your period is?

Answer: Yes.

A 2011 study found that ovarian activity is greater in the summer compared with the winter months. Based on the data, sunshine and warm weather can cause a higher frequency of ovulation and may shorten menstrual cycles by 0.9 days on average. The temps could also affect how you feel on your period.

“Women have reported to me that they experience more period-related symptoms in the wintertime ― more physical and emotional PMS symptoms and more period pain,” Jardim said.

She hypothesized that this could have to do with lower-than-normal vitamin D levels and low thyroid function (which is likely exacerbated by low outside temps). “Low thyroid is linked to heavier periods, and more period pain,” she explained.

If you have irregular periods, will you have a difficult time getting pregnant?

Answer: Not necessarily.

If you have trouble with a consistent cycle, don’t fret yet over what that might mean for your fertility.

“There are also other reasons for you to have irregular periods when you get older,“ Hechtman said. “Talk with your doctor but you should not worry that you will have a difficult time getting pregnant just because your periods are irregular. Some women will have infertility and irregular periods, but for the most part these two do not go hand in hand.”

Is it bad if your cycle is longer than 28 days?

Answer: No. It can be normal.

According to Denny, the normal menstrual cycle is 21 days to 35 days long, with the average being 28 days. This is because the average woman ovulates every 14 days. The length between will also tend to shorten, as you get older, said Hall.

“Changes in stress level, activity level, and diet can all affect your cycle length,” Denny added. She recommended meeting with your OB-GYN to discuss further if you find that your cycles are lasting outside of the “normal” range.

Is it true that the ‘period’ you get while taking hormonal birth control isn’t a real period?

Answer: Technically, yes.

According to Denny, taking birth control pills prevents your body from having normal hormonal fluctuations. This means you do not ovulate. However, the drop in hormones that happens during your “sugar pills,” or placebo pills, mimics the natural hormone withdrawal that happens before your period.

“It is this drop in hormone levels that causes your body to shed the lining of your uterus and have a period,” Denny explained. So it is still a “real” period that you are experiencing; your body just doesn’t ovulate to cause it.

The more you know!

Our 2024 Coverage Needs You

As Americans head to the polls in 2024, the very future of our country is at stake. At HuffPost, we believe that a free press is critical to creating well-informed voters. That's why our journalism is free for everyone, even though other newsrooms retreat behind expensive paywalls.

Our journalists will continue to cover the twists and turns during this historic presidential election. With your help, we'll bring you hard-hitting investigations, well-researched analysis and timely takes you can't find elsewhere. Reporting in this current political climate is a responsibility we do not take lightly, and we thank you for your support.

to keep our news free for all.

Support HuffPost

Before You Go

100 Ways To De-Stress
(01 of100)
Open Image Modal
Try the "chocolate meditation" technique. This allows you to fully savor the sweet treat. Instructions here. (credit:altrendo images via Getty Images)
(02 of100)
Open Image Modal
Write your worries down in a journal. (credit:hey! My name is Fucchon~ I love photography so much. via Getty Images)
(03 of100)
Open Image Modal
Peel an orange. Studies show the smell of citrus can help reduce stress. (credit:Maciej Toporowicz, NYC via Getty Images)
(04 of100)
Open Image Modal
Read a book for six minutes. (credit:Oleh Slobodeniuk via Getty Images)
(05 of100)
Open Image Modal
Eat an avocado. The monounsaturated fats and potassium in the superfood can lower blood pressure. (credit:Patrick Llewelyn-Davies via Getty Images)
(06 of100)
Open Image Modal
Take a walk in green space. (credit:ASSOCIATED PRESS)
(07 of100)
Open Image Modal
Hang out with your BFF. (credit:Michael Kovac via Getty Images)
(08 of100)
Open Image Modal
Spend a few minutes focusing on your breath. (credit:Tim Kitchen via Getty Images)
(09 of100)
Open Image Modal
Take a power nap. (credit:ASSOCIATED PRESS)
(10 of100)
Open Image Modal
Bring your dog to work. Research suggests having Fido in the office can lower stress levels throughout the day. (credit:Bernard Weil via Getty Images)
(11 of100)
Open Image Modal
Listen to Mozart. (credit:Imagno via Getty Images)
(12 of100)
Open Image Modal
Try some aromatherapy. One 2009 study found it's an effective stress-relief technique, especially for high school students. (credit:Media for Medical via Getty Images)
(13 of100)
Open Image Modal
Let out a laugh. (credit:Tara Moore via Getty Images)
(14 of100)
Open Image Modal
Get a massage. (credit:Glenn Asakawa via Getty Images)
(15 of100)
Open Image Modal
Give someone a big hug. (credit:The Washington Post via Getty Images)
(16 of100)
Open Image Modal
Belt it out at karaoke... (credit:Mike Marsland via Getty Images)
(17 of100)
Open Image Modal
...Or sing in your church choir. (credit:George Frey via Getty Images)
(18 of100)
Open Image Modal
Do a small project or craft. (credit:Cavan Images via Getty Images)
(19 of100)
Open Image Modal
Take up knitting. Research shows the activity puts your brain in a state of flow similar to the one achieved through meditation. (credit:Loic Lagarde via Getty Images)
(20 of100)
Open Image Modal
Speaking of which, try a little mindfulness meditation. (credit:Peathegee Inc via Getty Images)
(21 of100)
Open Image Modal
Have sex. (credit:Alexander Nicholson via Getty Images)
(22 of100)
Open Image Modal
Unsubscribe from all of those promotional emails. (credit:HuffPost)
(23 of100)
Open Image Modal
Kiss a loved one. (credit:Blend Images - Jose Luis Pelaez Inc via Getty Images)
(24 of100)
Open Image Modal
Call your mom. (credit:Betsie Van Der Meer via Getty Images)
(25 of100)
Open Image Modal
Do a progressive muscle relaxation exercise. (credit:Jetta Productions/David Atkinson via Getty Images)
(26 of100)
Open Image Modal
Take an email vacation. (Bonus: It also makes you more productive.) (credit:HuffPost)
(27 of100)
Open Image Modal
Forgive someone. (credit:PeopleImages.com via Getty Images)
(28 of100)
Open Image Modal
Think about something you're grateful for. (credit:Kohei Hara via Getty Images)
(29 of100)
Open Image Modal
Exercise. Research shows it helps boost the body's ability to handle stress. (credit:Rob Stothard via Getty Images)
(30 of100)
Open Image Modal
Be mindful of how you deal with frustration during an argument. (credit:anzeletti via Getty Images)
(31 of100)
Open Image Modal
Drink black tea. (credit:A Girl With Tea/Flickr)
(32 of100)
Open Image Modal
Power down that smartphone for a few minutes. (credit:HuffPost)
(33 of100)
Open Image Modal
Walk the walk. Research shows if you carry yourself like a happy person, you'll feel happier, too. (credit:Lars Plougmann/Flickr)
(34 of100)
Open Image Modal
Drink some orange juice. (credit:mhaithaca/Flickr)
(35 of100)
Open Image Modal
Chew gum. (credit:ASSOCIATED PRESS)
(36 of100)
Open Image Modal
Reflect on what (and who) is important in your life. (credit:Jamie Grill via Getty Images)
(37 of100)
Open Image Modal
Eat foods rich in omega-3 fatty acids. Bring on the salmon! (credit:Hanataro/Flickr)
(38 of100)
Open Image Modal
Tap into your religious beliefs. (credit:Allen Donikowski via Getty Images)
(39 of100)
Open Image Modal
Look into a less stressful job. (credit:Compassionate Eye Foundation/Hiep Vu via Getty Images)
(40 of100)
Open Image Modal
Live in Salt Lake City (or just take a visit). It was named the least-stressed city in the country in 2014. (credit:David Crowther via Getty Images)
(41 of100)
Open Image Modal
Walk or bike to work. (credit:Smart Trips/Flickr)
(42 of100)
Open Image Modal
Listen to soothing nature sounds. (credit:Alan Vernon./Flickr)
(43 of100)
Open Image Modal
Eat a bowl of oatmeal. (credit:Keith Beaty via Getty Images)
(44 of100)
Open Image Modal
Give acupuncture a try. (credit:ASSOCIATED PRESS)
(45 of100)
Open Image Modal
Flash a smile at someone. (credit:iPandastudio via Getty Images)
(46 of100)
Open Image Modal
Do some guided imagery exercises. (credit:Paul Vozdic via Getty Images)
(47 of100)
Open Image Modal
Get a plant for your house or your desk. (credit:r4n/Flickr)
(48 of100)
Open Image Modal
Let yourself have a good cry. (credit:sudo takeshi via Getty Images)
(49 of100)
Open Image Modal
Eat some dark chocolate. (credit:Stephen Cummings/Flickr)
(50 of100)
Open Image Modal
Get in touch with your inner yogi. Try one these yoga poses, specifically geared toward reducing anxiety. (credit:GO INTERACTIVE WELLNESS/Flickr)
(51 of100)
Open Image Modal
Say no. You can do anything, but not everything. (credit:Thomas Barwick via Getty Images)
(52 of100)
Open Image Modal
Have an orgasm. (credit:Noviembre Anita Vela via Getty Images)
(53 of100)
Open Image Modal
Take a laughter yoga class. (credit:ASSOCIATED PRESS)
(54 of100)
Open Image Modal
Think positive thoughts. (credit:Jamie Grill via Getty Images)
(55 of100)
Open Image Modal
Dance it out. Not only does it reduce stress, it can also boost your memory. (credit:JEWEL SAMAD via Getty Images)
(56 of100)
Open Image Modal
Take a warm bath. (credit:www.metaphoricalplatypus.com/Flickr)
(57 of100)
Open Image Modal
Surround yourself with the scent of pine... (credit:lars hammar/Flickr)
(58 of100)
Open Image Modal
...Or the aroma of vanilla. (credit:djwtwo/Flickr)
(59 of100)
Open Image Modal
Float in water. (credit:Taylor Weidman via Getty Images)
(60 of100)
Open Image Modal
Sleep. Not only is it crucial to zapping stress, it's key to your daily happiness. "When we're exhausted, we drag ourselves through the day instead of enjoying the day," HuffPost president and editor-in-chief Arianna Huffington once said. (credit:ASSOCIATED PRESS)
(61 of100)
Open Image Modal
De-clutter your home or your desk. (credit:Jonathan Kitchen via Getty Images)
(62 of100)
Open Image Modal
Become a morning person. (Or at least embrace the morning.) (credit:keepps/Flickr)
(63 of100)
Open Image Modal
Spend time around horses. (credit:ASSOCIATED PRESS)
(64 of100)
Open Image Modal
Focus on one task at a time. (credit:HuffPost)
(65 of100)
Open Image Modal
Pay attention to your surroundings. (credit:Andrew Burton via Getty Images)
(66 of100)
Open Image Modal
If you're a smoker, quit. (credit:Sweet One/Flickr)
(67 of100)
Open Image Modal
Watch 3-D videos of trees. (Really!) (credit:Paper Boat Creative via Getty Images)
(68 of100)
Open Image Modal
Go to the beach. (credit:dicau58/Flickr)
(69 of100)
Open Image Modal
Distance yourself from stressful people in your life. (credit:Blend Images - Peathegee Inc via Getty Images)
(70 of100)
Open Image Modal
Repeat a positive affirmation. Looking for a few examples? Try these. (credit:Asia Images via Getty Images)
(71 of100)
Open Image Modal
Choose not to wait in line. (credit:JGI/Jamie Grill via Getty Images)
(72 of100)
Open Image Modal
Spend time with the person you're in love with. (credit:Raphye Alexius via Getty Images)
(73 of100)
Open Image Modal
Drink a cup of green tea. (credit:Kirinohana/Flickr)
(74 of100)
Open Image Modal
Feel free to ignore your boss while you're on vacation. (credit:Sam Edwards via Getty Images)
(75 of100)
Open Image Modal
Embrace aging. (credit:Javier Encinas via Getty Images)
(76 of100)
Open Image Modal
Try a "mood monitoring" exercise. Find tips on how to do it here. (credit:Simon Gerzina Photography via Getty Images)
(77 of100)
Open Image Modal
Take a break from social media. (credit:HuffPost)
(78 of100)
Open Image Modal
Use a little foul language (in the right company). (credit:JPM via Getty Images)
(79 of100)
Open Image Modal
Share a meal with a friend. (credit:HuffPost)
(80 of100)
Open Image Modal
Let out a deep sigh... (credit:christian.plochacki via Getty Images)
(81 of100)
Open Image Modal
...Or a primal scream. (credit:Ben Richardson via Getty Images)
(82 of100)
Open Image Modal
Make a silly face. (credit:JTSiemer via Getty Images)
(83 of100)
Open Image Modal
Close your eyes, even for just a few moments. (But don't do it while you're driving.) (credit:Eveline Kooijman via Getty Images)
(84 of100)
Open Image Modal
Brush your hair. (credit:Alexandra Wyman/Invision/AP)
(85 of100)
Open Image Modal
Do something nice for someone else. Good karma and less stress? Win. (credit:Ascent Xmedia via Getty Images)
(86 of100)
Open Image Modal
Give yourself some quiet time. (credit:Westend61 - Hans Huber via Getty Images)
(87 of100)
Open Image Modal
Write your thoughts on a piece of paper, then physically throw them out. (credit:Tetra Images via Getty Images)
(88 of100)
Open Image Modal
Stare at the color blue. (credit:thor_mark /Flickr)
(89 of100)
Open Image Modal
Look at old photographs. (credit:Vasiliki Varvaki via Getty Images)
(90 of100)
Open Image Modal
Set "stress boundaries." If someone -- or something -- is starting to stress you out, step away from the situation. (credit:Martin Barraud via Getty Images)
(91 of100)
Open Image Modal
Go for a run. (credit:ASSOCIATED PRESS)
(92 of100)
Open Image Modal
Color a picture. This activity isn't just for kids! (credit:Scott Gries/Invision/AP)
(93 of100)
Open Image Modal
Pet your dog or cat. (credit:Richard W. Rodriguez/Invision/AP)
(94 of100)
Open Image Modal
Look out the window. (credit:AlishaV/Flickr)
(95 of100)
Open Image Modal
Try a de-stressing app. Programs like Headspace, Calm and our own GPS for the Soul are designed to reduce stress.
(96 of100)
Open Image Modal
Use your imagination and look at your life like scenes in a movie. (credit:ASSOCIATED PRESS)
(97 of100)
Open Image Modal
Count to 10, then count backward. (credit:DesignSensation via Getty Images)
(98 of100)
Open Image Modal
Spend a little time in the sun. (Just wear your SPF!) (credit:ASSOCIATED PRESS)
(99 of100)
Open Image Modal
Take a lunch break away from your desk. (credit:Judith Haeusler via Getty Images)
(100 of100)
Open Image Modal
If your stress becomes unmanageable or overwhelming, consider seeing a therapist. (credit:Blend Images - Ned Frisk via Getty Images)

HuffPost Shopping’s Best Finds

MORE IN LIFE