Human Body & Health

How does our brain send messages to our body

How does our brain send messages to our body?
Why do we get goosebumps

Why do we get goosebumps?
What happens inside our body when we get sick

What happens inside our body when we get sick?
How do vaccines protect us

How do vaccines protect us?
Why do we have different blood types

Why do we have different blood types?
why do we dream

Why do we dream?
why do we get tired

Why do we get tired?
why does our heart beat faster when we run

Why does our heart beat faster when we run?
why do we have belly buttons

Why do we have belly buttons?
why do we sneeze

Why do we sneeze?