Involuntary, endorphins, hormones, cells, epinephrine.
1 When we exercise our bodies release
a chemical that
helps concentration.
2 The...
in our body
are feel good chemicals that make us feel
relaxed and happy.
Our memory and creativity depend on the
number of brain
that we have.
4. Some muscles in our bodies are called
muscles because
they function automatically.
5 The growth and strength of our muscles
can be affected by our

Сметана011    2   15.12.2021 08:53    1