How to stop stress from shrinking your brain

Life’s relentless juggle often leaves us feeling frayed, but world-leading neurologist Dr Majid Fotuhi insists our brains possess a remarkable ability to rebuild.

In the conclusion of his exclusive series, he explains that everyday anxieties are rooted in chemical processes that can become destructive "negative stress loops."

High cortisol levels are particularly toxic, physically shrinking the hippocampus—the brain’s memory centre. To counter this, Dr Fotuhi’s 12-week Brain Fitness Programme offers a science-backed shield against cognitive decline and dementia.

Strategies to lower stress

Changing your mindset is vital for brain longevity. Dr Fotuhi recommends "reframing," which involves naming negative thoughts aloud and questioning their validity.

He notes, “That person’s problem isn’t my problem,” can de-escalate internal tension. Physical interventions are equally powerful; the "6-3-6" breathing technique—inhaling for six, holding for three, and exhaling for six—calms the vagus nerve.

Activities like vigorous exercise, volunteering, and socialising also boost dopamine and oxytocin, effectively "counteracting cortisol."

Building an invincible mind

To sharpen a middle-aged brain often clouded by "brain fog," Dr Fotuhi suggests targeted mental exercises:

• Focus: Spend 20 minutes on a single task without digital distractions.
• Memory: Summarise conversations or learn ten new words daily.
• Problem solving: Play strategy games like chess or navigate without a GPS.

Dr Fotuhi reminds us that memory lapses are rarely dementia but often result from "poor sleep quality," "sedentary lifestyle," or stress.

By adopting these habits, he promises: “The more strictly you follow my programme, the better your results will be.”