Tap the Settings app icon on your iPad to change your default email account. Tap Mail, Calendars, Contacts.. Scroll down to the Mail heading and tap Default Account.. Tap an account to select it as your default. Tap the Mail icon and then tap the New Message icon.
The fear of falling (FOF) is a natural fear and is typical of most humans and mammals, in varying degrees of extremity.
In most cases, it's probably ventricular fibrillation that causes these sudden deaths from fear. Ventricular fibrillation basically causes the ventricles (lower chambers of the heart) to vibrate in a way that hampers their ability to deliver blood to the body.