The new weight loss drugs may be a way to reduce obesity-associated breast cancer risk or improve outcomes.

Liquid biopsies are highly sensitive blood tests that detect small fragments of tumor DNA or circulating cancer cells in the bloodstream.

Alcohol's risks remain low--many still view drinking in moderation as harmless. "Drink with awareness."

Immunotherapy might serve as a first-line treatment for early-stage cancers with mismatch repair deficiencies.