emotions

Can emotions be contagious?

Why do certain smells bring back strong memories?
Why do people feel shy sometimes

Why do people feel shy sometimes?
Why do we sometimes feel jealous

Why do we sometimes feel jealous?
Why do we get goosebumps

Why do we get goosebumps?
Why do people cry

Why do people cry?
Why do people fight

Why do people fight?
Why do people laugh

Why do people laugh?