Why You Should Ejaculate At Least 21 Times This Month, According to Science

The key to good prostate health might be in your own hands: Ejaculating frequently may reduce your risk of prostate cancer, finds new research from the Boston University of Public Health.

The study looked at how ejaculation frequency affected prostate cancer risk over the course of 18 years.

It found that men ages 20 to 29 who ejaculated 21 times or more each month were 19 percent less likely to be diagnosed with prostate cancer than those who ejaculated less often, between 4 and 7 times per month.

New Research: Your Risk Of 10 Types Of Cancer Dramatically Increases If You Are Overweight

Pack on the pounds and you might gain more than just a spare tire: Excess weight raises your cancer risk more than previously thought, new research suggests.

Prior studies have already linked higher weights to an increased risk of 5 types of cancer: colon, esophagus, kidney, breast, and uterine (the last two for women only.)

Now, after analyzing more than 1,000 studies that looked at excess weight and cancer risk, researchers from the International Agency for Research on Cancer (IARC) have added 8 more types of cancer to the list.

Eating Fruits and Vegetables Could Make You As Happy As Getting a Job

Science has found another reason to eat more fruits and vegetables—eating enough of them could make you a happier person, according to new Australian research.

More than 12,000 people were surveyed twice about how many fruits and vegetables they typically ate—once in 2007, and again in 2009.

During both of those surveys, the subjects also rated their overall life satisfaction on a scale of 1 to 10.

Researchers looked at how each person’s fruit and vegetable consumption and happiness changed over those two years, and found that with each extra serving of fruits and vegetables people ate, the happier they felt.

How Much Protein Can Your Muscles Absorb In One Sitting?

It would seem logical that the more protein you pack away during a meal, the bigger your muscles would grow.

But your body doesn’t work that way. There’s a certain amount of protein your muscles can absorb in one sitting.

“Skeletal muscle protein synthesis is maximized by 25 to 35 grams of high-quality protein during a meal,” says Doug Paddon-Jones, Ph.D., a professor of nutrition and metabolism at the University of Texas Medical Branch.

“Protein synthesis” is basically a fancy way of saying “building and repairing muscle.” Exercise creates microtears in your muscles. The harder you work, the more tears. Protein helps repair these tears, causing your muscles to grow bigger and stronger.

Why You Should Work Your Abs First

Your core—the dozens of muscles between your shoulders and your hips—contracts first in every exercise, he explains. All the energy you exert starts in your midsection, and is then transferred to your limbs.

A strong core allows you to apply more force to a barbell, whereas a weak core decreases the amount you can apply.

But in order to prime your core muscles so they fire better during your workout, you need to train your core right after your warmup, he says.

Most Physicians Say It Takes 5 to 7 Attempts to Quit Smoking. Here’s Why They’re Wrong

It might take more tries than you think to finally stop smoking for good: Smokers may need close to 30 quit attempts before they finally succeed, new research in BMJ Open found.

That’s well above the 5 to 7 benchmark that physicians usually refer to.

The 5 to 7 estimate comes from how many quit attempts former smokers actually remember having taken in their lives, says the study’s lead researcher Michael Chaiton, Ph.D.