<unk>  (or pulse<unk>  is the speed of the heartbeat measured by the number of contractions (beats) of the heart per minute (bpm). The<unk>  can vary according to the body's physical needs, including the need to absorb oxygen and excrete carbon dioxide, but is also modulated by numerous factors, including, but not limited to, genetics, physical fitness, stress or psychological status, diet, drugs, hormonal status, environment, and disease/illness as well as the interaction between and among these factors. It is usually equal or close to the pulse measured at any peripheral point. The American Heart Association states the normal resting adult human<unk>  is 60–100 bpm. Tachycardia is a high<unk> , defined as above 100 bpm at rest. Bradycardia is a low<unk> , defined as below 60 bpm at rest. When a human sleeps, a heartbeat with<unk> s around 40–50 bpm is common and is considered normal. When the heart is not beating in a regular pattern, this is referred to as an arrhythmia. Abnormalities of<unk>  sometimes indicate disease.
Heart rate
Respiratory rate
Blood pressure
Heart sounds
Cardiac output
Pulse
Pulse 
Muscle tone