40 year old Rolden Batista has strummed his way back to good health... by playing his guitar.
After the Brazilian suffered from a series of seizures in 2016, he underwent a scan and found out he had a brain tumour that needed to be surgically removed.
In a rather innovative idea, the operating doctor came up with the idea of waking Mr Batista up in the middle of the operation - and play his guitar to make sure the surgery hadn't affected his brain's functioning.
To the relief of the doctors he was able to strum a popular song and serenade them while the tumour was being removed.
It seems sleep tracking apps may actually be counter-productive, with a new study describing the phenomenon of "orthosomnia" - an unhealthy preoccupation with achieving perfect sleep.
Dr Kelly Glazer Baron, clinical psychologist at Rush University in Chicago, USA, said people can become fixated on the hours of good sleep they have, as measured by their FitBit or similar gadget - which can in turn lead to stress and insomnia.
The phenomenon can also result in weight gain, impaired memory, mood swings, heart and immune problems, Baron said.
Avoiding late-night snacking, caffeine and sticking to a sleep schedule can be natural ways to improve your sleep, she added.
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