Neuroscience

Vibrating glove helps stroke patients recover from muscle spasms

After a stroke, survivors often experience uncontrollable spasms that can twist their arms and hands into perpetual fists. The only treatments are expensive, frequently painful injections of botulinum toxin or oral medications ...

Sleep disorders

Can 'colored noise' really improve our sleep?

One in four people suffer from some kind of sleep disorder—insomnia, sleep apnea, narcolepsy, hypersomnia, restless legs syndrome. And for a quarter of them, there is no effective, long-term solution. It is a public health ...

page 1 from 20

Frequency

Frequency is the number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency. The period is the duration of one cycle in a repeating event, so the period is the reciprocal of the frequency. For example, if a newborn baby's heart beats at a frequency of 120 times a minute, its period (the interval between beats) is half a second.

This text uses material from Wikipedia, licensed under CC BY-SA