Neuroscience

Sleep takes up roughly a third of our lives, yet its exact function remains debated. What does sleep do for the brain and body that cannot happen when we are awake?

The brain is made of billions of neurons. How does an electrical signal travel along a neuron, and how does it pass from one neuron to the next?

What does current neuroscience tell us about the purpose or function of dreaming during sleep?

Alzheimer's is the most common form of dementia. What is happening in the brain at the cellular and molecular level, and what risk factors are known?