Lice in at Least 25 States Show Resistance to Common Treatments. Aug. 18, 2015 â The start of the school year means new classes, new friends, homework and sports. It also brings the threat of head lice. Scientists report today that lice populations in at least 25 states have ...
Both testosterone and estrogen levels experience a boost through regular sexual activity. Testosterone does more than just boost your sex drive, it helps fortify bones and muscles, and it keeps your heart in good working condition as well. In women, sex increases the levels of estrogen, which protects against heart disease.
Testosterone is most often associated with sex drive, and it plays a vital role in sperm production. But it also affects bone and muscle mass, the way men store fat in the body, and even red blood cell production. A manâs testosterone levels can also affect his mood. A drop in testosterone levels can contribute to: