Why we are advised not to use animal fats for cooking?

Why are we advised not to talk while eating food ?

Why we advised to take sufficient water?

Why are we advised to take sufficient water ?

Why do we get rains?

Why are you advised not to touch electric appliances with wet hands?

Why is it advised not to wear synthetic clothes while working in a laboratory or working with fire in in the kitchen ?

Why are we normally advised to take balanced and nourishing food when we are sick?

To protect tooth decay we are advised to brush our teeth regularly. The nature of the tooth paste commonly used is

Why it is advised to take low amounts of salt in food ?