Why 6 fingers per hand are better than 5

Why 6 fingers per hand are better than 5

Neurology / Neuroscience

Why 6 fingers per hand are better than 5 People with polydactyly — who have more than five fingers per hand — have better dexterity and rewired brains that can control these extra digits.

What can cause lower back pain? Lower back pain is very common and often the result of a minor injury or overuse. However, it can sometimes be a symptom of conditions that affect the spine, such as spinal stenosis, degenerative disc disease, scoliosis, sciatica, and cauda equina syndrome. Learn more about lower back pain here.

What to know about deep sleep During deep sleep, the body restores various functions, including energy and memory. There are several stages of sleep, and they are all important. Learn more about deep sleep here.

Low-amp electroconvulsive therapy may relieve suicidal thoughts A new, small trial finds that low-amp electroconvulsive therapy is highly effective in reducing suicidal ideation while having no cognitive side effects.

Is virtual reality the next frontier of Alzheimer's diagnosis? New research suggests that using a virtual reality simulator could be more effective at detecting Alzheimer's disease than standard tests.

Why do people laugh in their sleep? A person may laugh in their sleep due to odd dreams or sleep disorders. Rarely, the cause is a neurological condition. Sleep laughing can also be normal, especially in babies. Learn more about laughing during sleep here.

What is learned helplessness? In this article, we discuss the psychology behind learned helplessness — a state in which a person feels unable to change a stressful situation, even when change becomes possible. We look at the background of the theory and ways to overcome this state.

What are the side effects and risks of Ritalin? Ritalin (methylphenidate) is a stimulant medication for the treatment of ADHD and narcolepsy. Ritalin can cause side effects and has the potential for misuse and addiction. Researchers are investigating the long-term safety and effectiveness of this drug in children and adolescents. Learn more here.

What to know about neuralgia Neuralgia is a condition that causes shooting and burning pain in the nerves. There are many types of neuralgia. Treatment options include medications and surgery. Learn more about neuralgia here.

Early-onset Alzheimer's: Is 'bad cholesterol' a factor? A new study connects high blood levels of 'bad' cholesterol with the presence of early-onset Alzheimer's. The link, the authors suggest, could be causal.