Cannabis, Tobacco, and Brain Volume: What the Data Show
A large meta-analysis links cannabis to smaller amygdala volume and tobacco to broader brain-volume differences—but causation and co-use remain unsettled.
MCT oil raises ketones reliably, but can it help the aging brain? New MCI trials show modest cognitive signals, brain-network changes, and major limits.
Does Aerobic Exercise Grow the Hippocampus? The Evidence
Aerobic exercise boosts fitness, but does it grow the hippocampus? What randomized trials in healthy and at-risk adults actually show about brain volume.