The Brain, a Miraculous Mass of Protoplasm (1:06) --

What is Age? (1:57) --

Diamond's Education (2:16) --

An Ideal Science: Physical Brain Changes (7:16) --

"Use it or Lose It" (2:46) --

What Changes in the Brain With Environmental Enrichment? (4:26) --

Brain and Body Development Correlation (2:32) --

Games Enhance the Immune System (2:20) --

Alzheimer's and the Brain (3:23) --

Enrichment Causes Growth in the Brain (2:15) --

Involvement Means Enrichment (3:22) --

Credits: Older Brains, New Connections: A Conversation with Marian Diamond at 73 (1:12).