NSDR (Non-Sleep Deep Rest)
NSDR (Non-Sleep Deep Rest) is a term coined by neuroscientist Andrew Huberman to describe practices that induce a state of deep relaxation while maintaining awareness. It includes techniques like:
- Yoga nidra (yogic sleep)
- Progressive muscle relaxation
- Meditation
- Hypnosis
- Certain breathing exercises
NSDR protocols typically involve lying down and following guided instructions to systematically relax the body and mind. The goal is to achieve a state similar to deep sleep but while remaining conscious. Huberman suggests NSDR can help with stress reduction, improved sleep quality, enhanced learning, and mental restoration.
BDNF (Brain-Derived Neurotrophic Factor)
BDNF (Brain-Derived Neurotrophic Factor) is a protein that acts like fertilizer for brain cells. It's one of the most important growth factors for neurons and plays crucial roles in:
- Promoting the survival of existing neurons
- Encouraging growth of new neurons and synapses
- Supporting learning and memory formation
- Maintaining brain plasticity (the brain's ability to adapt and reorganize)
BDNF levels can be increased through exercise, quality sleep, intermittent fasting, and certain foods. Low BDNF is associated with depression, anxiety, and neurodegenerative diseases, while higher levels are linked to better cognitive function, mood regulation, and brain health.