British Thermal Unit is a standard unit of energy that is measured at about 1055 joules. The British Thermal Unit (BTU or Btu) is primarily used in the United States more than in the United Kingdom. This energy unit is the total amount of thermal energy that is required to heat or cool 1 pound of water significantly by 1Â°Fahrenheit.
Bradyphrenia is a neurological term referring to the slowness of thought common to many disorders of the brain.
Bradycardia is an abnormal heart rhythm condition. It happens when the heart beats at an unusually slow rate. It can be triggered by a number of health conditions, from hypothyroidism to hypothermia. A normal heart rate is considered to be between 60 and 100 beats a minute (BPM). If your heart rate is less than 60 it is considered slower than normal.