This week's topics include sex differences in response to antithrombotics, variants of Covid in people with persistent infection, making contraception free, and CRC screening in young adults.

This week's topics include using CT to help determine brain death, PET scanning for tau in Alzheimer's, screen time trajectories in US youth and mental health, and cannabis and your heart.

This week's topics include the worldwide burden of skin cancers, risk of a second stroke when a person is taking anticoagulants, patients supporting each other for weight loss maintenance, and imaging for dense breasts.