Strengthening and weakening the connections between neurons, known as synapses, is vital to the brain's development and everyday function. One way that neurons weaken their synapses is by swallowing up receptors on their surfaces that normally respond to glutamate, one of the brain's excitatory chemicals
The answer is b, to stregthen muscles
The answer to your question will be C.
It needs atleast 20 minutes a day in order to have an effective cardio exercise.
If you really wanted to have a good cardio exercise that will benefit you and have a good health and healthy lifestyle, then you have to spare your 20 minutes a day.
