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The claim is that 7,000 brain cells are lost per day. This answer suggests that brain cells are indeed lost faster than they regenerate. So I see this as not a debunking, but a possible verification.
These studies indicated that between 35% and 55% of cortical neurons were lost during adulthood, corresponding to a nearly 1% loss per year, and additional studies by Devaney and Johnson (1980), Henderson et al. (1980), and Anderson et al. (1983) reported similar losses (Fig. 5).
1 gru 2017 · The findings suggested we lose about one per cent of our brain cells per year through adulthood, meaning that the brains of the elderly were estimated to have lost between 35 per cent to 55 per cent of their peak number.
3 paź 1996 · “We examined the brains of 38 normal people who died between ages 57 and 90 years, and found no age-related loss of neurons [brain cells],” announced Bradley Hyman, associate professor of neurology.
28 lut 2022 · “You lose 100,000 brain cells every day,” claims a message posted on “FACTS SA”, a public South African Facebook group with some 180,000 followers. It’s been viewed more than 113,000 times since it was posted on 21 February 2022.
9 maj 2023 · Losing brain cells is a natural part of aging, and it’s estimated that we lose around 10,000 brain cells per day. However, certain factors can accelerate brain cell loss, such as chronic stress, drug and alcohol abuse, and head injuries.
31 lip 2019 · In a healthy, aging brain, some cognitive changes are normal — but total neuronal cell death is not. Neuroscientist John Morrison debunks the myth that neurons always die as people age.
