Answer:
The consistent and ongoing increase in heart rate, and the elevated levels of stress hormones and of blood pressure, can take a toll on the body. This long-term ongoing stress can increase the risk for hypertension, heart attack or stroke.
Children under 12 may not register as a donor in the Donor Register, nor may anyone else do this on their behalf. Doctors may only use the organs or tissue of a deceased child if they have obtained consent from the child’s parents or carers.
Young people aged 12 to 15 can register as an organ donor. However, the parents or carers have the legal authority to override their child’s wishes on organ donation, even when this is registered, until the child turns 16.
Young people not listed on the Register are automatically sent a donor form after their 18th birthday. The government hopes this will encourage more people to become organ donors.
Answer:
Some longer-term changes begin as adjustments to compensate for drug-induced increases in neurotransmitter signaling intensity. For example, the brain responds to repeated drug-induced massive dopamine surges in part by reducing its complement of dopamine receptors.
Neural connections decrease as we age
