Reproduction affects health—and so does biological sex

Starting one's sex life and having children at a young age can run in the family. But can pregnancy have beneficial health effects, and do the partner's genes contribute to them? "We are just beginning to understand how pregnancy ...

Genetic marker may flag severe IBD earlier in some patients

In the largest genetic study of inflammatory bowel disease (IBD) traits to date, researchers have identified a genetic marker associated with more severe ulcerative colitis and Crohn's disease—the major forms of IBD.

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