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For most people, the pain of losing a loved one gradually lessens over time. But for others, however, that healing never comes. Instead, grief stays raw, consuming and unrelenting—a condition known as prolonged grief disorder (PGD). (Gray, 2/18)

Higher levels of moderate/vigorous physical activity (MVPA) after cancer diagnosis had a significant association with a lower risk of cancer mortality, according to pooled data from six large cohort studies. Focusing on seven cancers not normally included in studies of physical activity, the analysis showed variable effects on cancer mortality, depending on the type of cancer and level of activity. (Bankhead, 2/18)

The FDA has approved the topical phosphodiesterase 4 (PDE4) inhibitor difamilast (Adquey) as a new option for mild/moderate atopic dermatitis (AD). (Bankhead, 2/17)

A vaccine that targets a major cause of diarrheal disease in children in low-income countries is safe and induced an immune response in a phase 2 trial, researchers reported this week in The Lancet Infectious Diseases. (Dall, 2/18)

Why do only some patients with autoimmune hyperthyroidism develop thyroid eye disease? (Dotinga, 2/17)