Support nonprofit journalism.
Estrogen-replacement therapy that includes estrogen increases breast-tissue density among postmenopausal women, but the estrogen-replacement drug raloxifene doesn’t.
Regular cocaine use may account for one-fourth of nonfatal heart attacks in people under age 45.
A mutation of a gene on the X chromosome can lead to a dangerous autoimmune disorder and type I diabetes.
Transplants of skeletal-muscle cells may help heal hearts damaged by illness or previous heart attacks.
Mice genetically engineered to make two proteins normally active in early nerve development are able to regrow damaged nerve fibers somewhat in their central nervous systems.
Two studies have contradictory findings about the impacts of animal protein on bones in elderly people.
Excess weight or height can have a blinding impact, fostering the development of cataracts.
This article is only available to Science News subscribers. Subscribers, enter your e-mail address to access our archives. Client key* E-mail* Log in Not a subscriber? Science News is a nonprofit. Support us by subscribing now. Subscribe
Subscribers, enter your e-mail address to access the Science News archives.
Not a subscriber?
Become one now.