A study finds that biological aging is linked to both mental and physical health.Factors consistently related to advanced biological aging include: being male, smoking, being overweight, and having depression.The researchers found that depression is linked…

Batten disease is the name for a collection of rare, inherited, fatal conditions that often begin in childhood.One form, called CLN3 disease, is characterized by progressive loss of vision at 4–7 years of age, followed…