Regular intake of coffee or caffeine by patients with Alzheimer's disease may deteriorate their neuropsychiatric symptoms, including but not limited to anxiety, say researchers.

While red meat-rich in protein-is linked with increased risk of heart disease, protein from nuts and seeds could be beneficial for the human heart, suggests a study consisting of more than 80,000 participants.

Studying till late in the night will only fetch poor grades and it is high time to tailor students' class schedules to their natural biological rhythms, stress researchers. Students whose circadian rhythms were out of sync with their class schedules -- say, night owls taking early morning courses -- received lower grades due to "social jet lag," a condition in which peak alertness times are at odds with work, school or other demands.