7 days a week is recommended for any age to be hygienic but that's should you could never shower i guess i mean it's your choice but don't do that 6-7 is healthy or "normal"
Exercise
Diet
Sleep
<em>Being physically active, eating a healthy and balanced diet, and getting adequate amounts of sleep are essential to long-term health and wellbeing.</em>
I don't think you mean above the medula oblongata, i think you mean something else because the connection between the two hemispheres is connected by the Corpus Callosum which is above of the thalamus.
The only answer that i can make sense of what you've wrote is A Cerebellum but i don't think you are correct forming your question. Where did you find the question
Cardiovascular exercise is an <span>example of defending against cardiovascular disease through prevention.
Exercise helps our body to increase physical activity which enables agility and improve strength. Moreover, exercise also engages us to become more energetic and healthy by increasing metabolism and mental state. </span>