text: A mother-of-four whose addiction to Red Bull saw her drinking 24 cans of a day claims she has been cured of her habit by hypnosis. Sarah Weatherill, 31, became so dependent on the energy drink she was told if she cut down too quickly she could suffer a seizure as her body was so used to the caffeine. The law student spent a staggering £5,460 every year on the popular energy drink  since she became hooked in 2009. Scroll down for video . Sarah Weatherill, 31, was so addicted to Red Bull she drank 24 cans a day leaving her lethargic, depressed, suffering heart palpitations and constantly anxious . Her habit was at its worst the following year when she was studying for a law degree and wanted to stay awake to revise for exams. She soon became dependent on the drink and couldn't get out of bed unless she knew she had some in the fridge. She also became lethargic, depressed, had heart palpitations and was constantly feeling anxious as her £105-a-week habit spiralled out of control. She finally decided to do something about the problem after she realised the constant need for the Red Bull was severely damaging her health. And after seeing hypnotherapist earlier this month, she claims she has been cured of her addiction thanks to just one 50-minute session. Her habit had been so dangerous she needed to cut down to eight cans a day in the run up to the hypnosis - as coming off so much caffeine abruptly could have caused a seizure. A 250ml can of Red Bull contains: . 80mg of caffeine - the same amount as in an espresso. 27.5g sucrose and glucose combined - the equivalent of almost seven teaspoons of sugar. 10g Taurine (an amino acid that is thought to boost athletic performance). B vitamins. Ms Weatherill's 24-a-day habit meant she was drinking 1.92g of caffeine every day. A 2005 study into caffeine-related deaths said a person would need to ingest 5g to overdose, suggesting she was taking nearly half the potentially lethal dose. Ms Weatherill, from Coventry, said: 'I was studying for a Higher National Certificate in law in 2005 and used to have the odd Red Bull for a pick me up. 'It is hard to say when it became every day but I remember that by 2009 I was definitely hooked. 'Whenever I felt tired having a Red Bull would be the first thing I would do. 'It was  worst in 2010 when I was doing law exams at university and my children were off school. 'Sometimes I would have exams day after day - and with the stress of revising I was having 24 cans a day. 'I was pulling all-nighters and using the drinks to stay awake. In the end, it got to the point where I just needed Red Bull to function. 'I used to get my shopping delivered and used to have four or five crates and that only lasted for a week - it got out of hand. 'There would be times when I would get palpitations and shakes but I think I just got used to the caffeine.' Red Bull - whose slogan says the drink 'gives you wings' - is made by an Austrian company and is the highest selling energy drink in the world. Miss Weatherill claims she was cured of her addiction in one 50 minutes hypnotherapy session with David Kilmurry (pictured right) This table shows a range of drinks in order of caffeine content and their relation to daily allowances. Ms Weatherill was drinking 1.92g of caffeine every day, way above the recommended limit of 400 mg . The drink has been branded safe by the European Food Safety Authority (EFSA) and more than five billion cans were sold in 2013. However, it has been criticised for its high caffeine levels with one 250ml can containing 80mg, similar to one cup of coffee. Ms Weatherill's 24-a-day habit meant she was drinking 1.92g of the drug every day. A 2005 study into caffeine-related deaths said a person would need to ingest 5g to overdose, suggesting she was taking nearly half of a lethal dose. But, incredibly, she claims she was completely cured of her addiction after a single session with cognitive behavioral hypnotherapist David Kilmurry on April 11. Ms Weatherill, who lives with boyfriend Phil Evans, 27, and four children aged between three and 14, added: 'I knew at the start of this year it was a dependency so thought I would give hypnotherapy a go. 'It was a weird process, I felt like I was in there for 15 minutes but it was 50 minutes. 'All I can remember is that it was like a kaleidoscope effect, I remember him saying I didn't need Red Bull.' 'I am convinced I won't have another can. I feel like a different person,' Ms Weatherill said after undergoing hypnotherapy to cure her of her energy drink habit . She added: 'It was like a paralysis because I had an itch, but couldn't move to scratch it. 'It gave me a lot of strength because in the past I have tried to give up but lasted a week and then gone back to the Red Bull. 'I am convinced I won't have another can. I feel like a different person.' Hypnotherapist Mr Kilmurry added: 'Sarah's addiction was very serious. 'Coming off that amount of caffeine and taurine  can lead to seizures, so she gradually reduced her intake before coming to me to make a safe escape. 'Energy drink addicts can also suffer insomnia, depression, anxiety and heart palpitations. 'Luckily Sarah soldiered through and has been amazed at the changes.'
target: Sarah Weatherill, 31, spent £5, 460 every year on the popular energy drink .
  Her 24-a-day habit left her lethargic, depressed and with heart palpitations .
  If she cut down too quickly she was told she risked suffering a seizure .
  Claims her addiction was cured by one 50 minute hypnosis session .