Marijuana causes more harm to the adolescent brain than alcohol does, suggests a study in The American Journal of Psychiatry. Researchers followed 3,826 students in Montreal for four years, beginning when they were age 12 or 13. Each year, the students took a...
The more toddlers are exposed to complex and rich conversation, the better cognitive and language skills they develop in later childhood, finds a study in Pediatrics. Researchers used computer software to analyze six months of recordings from the homes...
Cancer patients with depression who receive mental health treatment incur fewer health-care costs than those who receive no treatment, suggests a study in Health Psychology. Researchers analyzed the medical records of 182 cancer patients at the University of California, San...
Fostering gratitude can encourage adolescents to become less materialistic and more generous, suggests a study in The Journal of Positive Psychology. Researchers asked 61 adolescents to keep a daily journal for two weeks–half were assigned to write about who and what they were...