February’s Healthy Heart Month highlights heart disease as the top US killer, key warning signs, and lifestyle changes that can lower your risk.

Fish oil’s cancer-fighting reputation may hinge on a little-known gene. Researchers discovered that omega-3s like EPA and DHA help curb colorectal cancer only when the enzyme ALOX15 is present.

By far the strongest genetic risk factor for Alzheimer’s disease is a variant of apolipoprotein E, or ApoE. People who carry ...

Dust from asteroid Bennu is revealing a surprising origin story for life’s building blocks. New research suggests some amino acids formed in frozen ice exposed to radiation, not warm liquid water as ...