The Weekly Health Quiz: Infidelity, Weight Loss and Mushrooms

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According to the American Association for Marriage and Family Therapy, about what percentage of married women and married men have had extramarital affairs?

8 percent of women and 16 percent of men

15 percent of women and 25 percent of men

About 25 percent of women and 40 percent of men

About 30 percent of women and men

True or false? Vaping can be addictive.



Evan Sung for The New York Times

Which statement about mushrooms is not true?

Mushrooms are low in calories and fat and cholesterol-free

Mushrooms are high in antioxidants, which tend to be concentrated in the caps rather than the stems

Mushrooms are a good source of vitamin D

To get the most nutritional value, eat a variety of mushrooms

A study that looked at the genomics and microbiomes of 23 men and women who were asked to gain weight found that:

It took participants about twice as long to lose weight as to gain it

More than 300 genes, many involved in fat metabolism, worked differently after even slight weight gain

Some gene changes persisted even after participants returned to a healthy weight

All of the above

For the first time, researchers in China have cloned this animal:





Long-term use of oral contraceptives reduced the risk of which form of cancer years later?

Colon cancer

Breast cancer

Ovarian cancer

Pancreatic cancer

Military families that moved to areas where obesity rates were high tended to:

Gain weight

Lose weight

The communities where families lived had little impact on weight

Doctors may have longer than previously thought to save stroke victims from disability or death. A new study suggests the time window for removing blood clots preventing blood flow to the brain may be:

Six hours after a stroke

10 hours after a stroke

16 hours after a stroke

24 hours after a stroke