Questions with the keyword 'pressure'

• what part of the brain is most active when anyone is under stress or pressure? why? by khizarsiqbal to Faye Comments: (So far, one comment )
• What is the main reason for opening and closing the heart valves, pressure or electrical activity? by spacenut to David, Mus, Tess, Yue Comments: (So far, one comment )
• Why do people who are fit have heart attacks even if they don’t do a job which involves more pressure on your heart? by ells8 to clairemarieroberts, Faye, Martin, Mus, Pete Comments: (No comments so far )