Why you shouldn't drink coffee when you first wake up
People who start their day first thing with a coffee could be making a detrimental mistake to their overall health.
Personal trainer and Instagram star Max Lowrey, from London, says you should not drink a cup of coffee as soon as you wake up.
The optimal time to have a coffee is during a two-hour window after you have already started your day, according to Lowrey.
"Personally I don't want to wake up and not be able to function without a caffeine fix. I want to rely on my body to wake itself up," Lowrey told the Daily Mail.
He added that drinking a cup first thing will stop the drink from helping you feel less tired due to your body's hormones.
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"Reaching for a coffee every time your energy levels slip just means you become dependent," he said.
"Caffeine should be used as a performance enhancer, not something that allows you to function at a normal level."
Lowrey said if you want to maximise the effects of caffeine, you need to adjust your intake to suit your body's levels of cortisol - a hormone that makes us feel tired at night and alert in the mornings.
He said it normally peaks between 8am and 9am so it's best to avoid drinking coffee during this time.
"Ideally, you want to get your caffeine during the lulls between cortisol spikes-otherwise, you start to develop a tolerance and have to drink more to get the same effect."
Lowrey recommends drinking a coffee or any other source of caffeine between 9.30am and 11.30am.