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The Whole Truth | Why loneliness is worse than smoking

Several new studies point to its hazardous effects. In overpopulated and over-familial India, it’s worse because of the taboos around being single.

July 02, 2023 / 16:04 IST
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Since forever, loneliness which is not a choice, has been a trigger for mental ailments. (Photo: Kristina Tripkovic via Unsplash)

Note to readers: The Whole Truth is a fortnightly column that helps you make sense of the new age of wellness

Dr Vivek Murthy, US surgeon general, declared America’s brand new epidemic last month. And it’s loneliness. He released an 81-page report from his office that said conclusively that widespread loneliness in the US poses health risks as deadly as smoking up to 15 cigarettes a day, costing the health industry billions of dollars annually. After the pandemic, this sounds like a crisis we already seemingly know how to brave. But this is not new. Loneliness is pain. It is lack of connection and intimacy. Since forever, loneliness which is not a choice, has been a trigger for mental ailments.

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This is what neuroscientists believe happens in your brain when you are lonely: The human brain has evolved seeking safety in numbers and groups, and registering loneliness as a threat. Amygdala, the core of a neural system in our brains for detecting and processing threat, go into an overdrive, triggering a release of “fight or flight” stress hormones. Your heart rate rises, your blood pressure and blood sugar level increase to provide energy in case you need it. Your body produces extra inflammatory cells to repair tissue damage and prevent infection, and fewer antibodies to fight viruses. Subconsciously, as you start getting used to living that way, you view other people more as potential threats and less as friends or well-wishers who could be remedies for your loneliness.

So the theory that floated during the pandemic that social isolation was a double-edged sword — that while we could escape the virus, our immune system wasn’t the best it could be because of the isolation — is not entirely baseless.