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Sheeza Basharat
Sheeza Basharatabout 1 month ago
How alcohol affects brain?

How alcohol affects brain?

3 Key Times in Life When Alcohol is Especially Bad for the Brain⁠ ⁠ There is "compelling" evidence of the harmful effects of alcohol on the brain. ⁠ ⁠ The greatest risk occurs during 3 periods of life that are marked by dynamic brain changes, say researchers from Australia and the UK.⁠ ⁠ The three periods are: ⁠ ⁠ 🧠 Gestation (conception to birth), which is characterized by extensive production, migration, and differentiation of neurons, as well as substantial apoptosis;⁠ ⁠ 🧠 Later adolescence (age 15 to 19 years), a period marked by synaptic pruning and increased axonal myelination; and⁠ ⁠ 🧠 Older adulthood (age 65+), a period associated with brain atrophy. Changes accelerate after age 65, largely driven by decreases in neuron size and reductions in the number of dendritic spines and synapses.⁠ ⁠ These changes in neurocircuitry could increase sensitivity to the neurotoxic effects of alcohol, Louise Mewton, PhD, Center for Healthy Brain Aging, University of New South Wales, Sydney, Australia, and colleagues say.⁠ ⁠ "A life course perspective on brain health supports the formulation of policy and public health interventions to reduce alcohol use and misuse at all ages," they write in an editorial published online in The BMJ.⁠ ⁠ By:

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