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.
Bradykinesia or slowness of movement is one of the three main signs of Parkinsonâs, along with tremor and rigidity (stiffness). Taken from Greek words meaning âslowâ and âmovementâ, the term was first used by Dr James Parkinson in 1817. Bradykinesia describes slowness in carrying out, rather than initiating, movements. Up to 98% of all people with Parkinsonâs experience slowness of movement. Bradykinesia is one of the early signs of an illness or movement disorder such as Parkinsonâs or Parkinsonism.