Why does the narrator ask us to remember what we had for lunch 3 weeks ago?
To remind us about our diet
To show us how memories form
To show us an example of how some memories lost

What is experience converted into?
A pulse of electrical energy
A network of neurons
A memory

What are synapses?
Neurotransmitters
Memory neuron
Dedicated sites

How can long-term memories form?
It's a special event
Two neurons communicate repeatedly
The brain is affected by it.

What are the factors that make memories lost?
Aging, chronic stress, depression
Aging, chronic stress, depression, isolation
Aging, chronic stress, isolation

Which is NOT the way to preserve your memories?
Physically active
Healthy diet
Sleeping