Knowing a patient’s subtype could help their doctor choose the best treatment.

MEDICINE
A recent study from Penn State details how researchers coaxed ordinary skin cells to grow into heart cells.
The brains of study participants who used cognitive behavioral therapy showed strengthened connections in regions associated with social perception.
Experts agree: Stop sticking things in your ears.
A paper supports the theory that the much-maligned organ may serve as a “safe house” for beneficial bacteria.
Each whirligig “paperfuge” costs about 20 cents and can process blood samples in two minutes.
8. You might want to rethink an ankle tattoo.
Dysfunctional gene expression may make some people hypersensitive to sex hormones like estrogen and progesterone.
9. Surgeons can make thumbs out of big toes.
A long-lasting chemical compound in the venom of platypuses and echidnas helps regulate blood sugar.
Pick the right wine, or you might get farts.
Resveratrol, a humble antioxidant found in grapes, nuts, and berries, can significantly reduce the hormones that create hormone imbalances in women with PCOS, and improve insulin sensitivity.
A report from the World Health Organization finds that treated bed nets stop malaria transmission even among pesticide-resistant mosquitoes.
The pill is capsule-shaped when swallowed, then expands in the stomach to deliver an entire course of treatment over several weeks.
Meet the Gila monster, the largest native lizard in the United States. But watch out for its venomous bites.