Nick Blackmer is a librarian, fact-checker, and researcher with more than 20 years of experience in consumer-facing health and wellness content. Eating later in the evening is often associated with ...

Pupil dilation provides a physiological readout of information gain during the brain's internal process of belief updating in the context of associative learning.

Taking biotin supplements can help improve hair, skin, and nail health in people with a deficiency. Eating beef liver, eggs, and sweet potatoes supplies your body with biotin naturally. Biotin is ...