Category Archives: Common Myths

Do Sit-Ups and Crunches Give You a Six-Pack?

Image result for sit ups

Image from PopSugar

Nicole Kell

Many people’s dream body involves having visibly defined abdominal muscles, commonly referred to as a “six pack”. There are many misconceptions about how to achieve this goal. Doing hundreds of sit-ups daily is not enough. It is said that, “abs are made in the kitchen.” With a healthy layer of body fat it may not be possible to see abs even when they are toned. You need very low body fat to be able to see definition of the abdominal muscles.  

Science says that you should eat less calories than you burn to lose fat. In order to do so, some recommend specific changes such as cutting back on sugar, simple carbs (breads, pastries, soft drinks), fried food, and alcohol while increasing consumption of vegetables, whole grains, healthy fats (nuts, avocado, eggs, salamon), and lean proteins.  No particular diet is demonstrated to be more effect than simply eating fewer calories than you burn. 

It is estimated that men must get body fat down to 6-9% for men and 16-19% for women of total body weight to be able to see abdominal muscle definition.  That’s a difficult level to reach, and dropping much lower than that can be unhealthy.  

In addition to very low body fat, theories state that it helps to strengthen the core muscles such as the transverse abdominal, the internal obliques, and the erector spinae. These muscles lie deep within your core and–so the theory goes–must be strong in order to see that six-pack. The best exercises for your core are compound exercises that engage every muscle in your core such as planks, deadlifts, overhead presses, and squats. Sit-ups and crunches only target a few muscle groups. Whether or not you can see definition in your abs, core muscles limit back pain and improve  balance and flexibility. 

Does licking your lips make them drier?

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Photo from VectorStock

Shreya Thiagarajan

Chapped lips can be unsightly and they can hurt.   When your lips are dehydrated, it can be tempting to lick and moisten them. The effect is  temporary and might make things worse.

Licking your lips coats them in a layer of your saliva, which contains enzymes and chemicals used to digest food in your mouth. These enzymes can lead to additional dryness.

When you reach for the lip balm, try to avoid those with potentially irritating ingredients like parabens, alcohol, and fragrances. To make the most out of your lip balm, choose products with SPF, which protects your skin from sun damage, and ceramides, which are fats that help lock in moisture. 

https://www.today.com/style/put-down-lip-balm-doctor-approved-list-chapped-lips-do-t69466

https://uamshealth.com/healthlibrary2/medicalmyths/lickingchappedlips/

https://www.rd.com/health/beauty/dry-lips/

 

Is it Safe to Swim on a Full Stomach?

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Photo from Clear Choice Pool

Nicole Kell

As summer rolls around, many of us have been warned about not swimming immediately after eating. This is based on the idea that blood will divert from the arms and legs and flow toward the digestive tract after consuming a large meal. We are told that  our stomach might cramp and we might drown. One might also hear that the limbs might not be supplied with enough blood flow to function. For most children, taking a break from swimming after a big lunch can feel like an eternity.

There are so many people who are concerned about the risks of swimming after eating that the American Red Cross presented a scientific advisory statement in the International Journal of Aquatic Research and Education that stated, “currently available information suggests that eating before swimming is not a contributing risk for drowning and can be dismissed as a myth.” Our bodies have enough blood to keep all of our body parts going after eating a large meal. This is exciting news for children who love the pool, lake, beach etc. They don’t have to listen to their parent’s advice… just this once. Saved by science.

http://theconversation.com/mondays-medical-myth-wait-30-minutes-after-eating-before-you-swim-10653

https://www.dignityhealth.org/articles/is-swimming-after-eating-really-dangerous

https://newsnetwork.mayoclinic.org/discussion/mayo-clinic-minute-should-you-wait-30-minutes-to-swim-after-eating/