Life should have been good for Theresa Tuddenham. She had fallen in love, was buying a house and was pregnant with her first baby. Yet she felt inexplicably depressed. 'I was feeling miserable. I just couldn't cheer up,' recalls Theresa, 28, a mortgage consultant who lives in Weymouth, Dorset, with her partner, Tom, 32, a customer adviser and their son, Tommy, now 18 months old.

She was given just three months to live after a stranger pointed out an unusual mole on her shoulder and she was diagnosed with stage four melanoma - a terminal disease. And skin cancer blogger, Emma Betts (pictured), was further angered last week when a newspaper ran a piece which showed that four in six Australians do not wear sunscreen every day.

Research suggests the way we sleep can affect health and wellbeing. Sleeping position can determine premature ageing or prevent Alzheimer's. Mandy Francis examines the pros and cons of common sleeping styles - and finds out how lying on your back can alleviate back pain and why the foetal position can help when dealing with stress.

EXCLUSIVE: Fran Purdy, from Bromley, had tried dozens of over-the counter remedies in a bid to cure her acne, even turning to home remedies. She only developed skin problems (left) in her early-20s and believes they were caused by stress. In a bid to alleviate the symptoms, she used various prescribed creams and washes. When these didn't work, she turned to the internet and looked up home remedies, including lemon juice and baking soda. After seeing no improvement after years of trying, she turned to specialist treatment as a last resort and underwent a treatment which uses uses a combination of electrodes and very fine needles to tighten and resurface the skin. Miss Purdy says her skin now looks and feels 'healthier than ever' right and inset). 'I'm so much happier in myself. I have even gone out on nights out without any make up at all.'

Lauren Brown, 22, from York, had been prescribed Co-cyprindiol - commonly known by the brand name Dianette - for skin problems. Pain and swelling in her leg (right) revealed she had DVT. The condition has left her with life-changing symptoms including chest pains and breathlessness and the possibility a blood clot may form on her lungs. She said: 'My job, relationship and social life have all been affected - but I feel lucky to be alive, as I now know that blood clots can be life threatening.' However until, now, she admits she had no idea the Pill carried an increased risk of complications such as clots. She now wants to warn other women of the dangers and urge them to seek help immediately if they suspect they may be developing DVT.

Three plus-size women say they are living proof you don't have to be thin to be healthy. Alix McKillop (right), 43, from Bristol, Julie Creffield (pictured with Paula Radcliffe, left), 37, from Stratford in East London, and Zoe Davies (centre), a 34-year-old veterinary nurse from Derby, all weigh between 14 and 20 stone, but say they couldn't feel better about their health and often compete in marathons and triathlons. Here, they explain why they believe when it comes to fitness, they believe size doesn't matter.

Finley Kirwan, from Southampton, was rushed to hospital late last month as he was struggling to swallow, was short of breath and had a dangerously high temperature. His parents, Danielle Hart and Dan Kirwan were terrified when he developed an angry red rash, which blistered and turned black over parts of his body. He was diagnosed with Stevens-Johnson Syndrome (SJS) - a rare but life-threatening skin condition that is usually a reaction to medication or an infection. The bizarre condition causes the cells in skin to die before shedding. Doctors believe the reaction was caused by ibuprofen as he'd been given the liquid form for children, Calprofen, to ease a cough. His mother said: 'I was distraught. At one point Finley had blood pouring out of his mouth as his body was shutting down. She is now sharing their story to ensure other parents are vigilant of the symptoms. She added: 'If we hadn't have rushed Finley straight to Southampton General Hospital then he wouldn't have made it through.'

Liz Kirtley, 45, went for a hearing test after going deaf in one ear. She was referred to an ear, nose and throat specialist and scans revealed the mass in her brain (pictured inset). Her treatment included being fitted with a metal frame (right) so her head could not move during the targeted radiotherapy. The mother-of-three (left), from Luton, now has annual scans to check it hasn't returned. She said: 'If I was not diagnosed it would have kept growing and eventually killed me because there's not that much room in your head for a brain and a tumour'

The procedure, SculpSure, is the first to use laser energy to de-bulk the midriff, back, thighs or even areas such as knees and underarms, and all without a single incision or injection. The device, also known as a hyperthermic laser, has been shown to be a safe and effective way of raising the localised temperature of tissue being treated to between 42C and 47C, at which fat cells break down without damaging the skin muscle beneath. One of the first British patients to benefit is London-based Lise Hillhorst (inset), who has since lost three inches from her waistline, and gone from a dress size 14 (left) to a 12 (right).

Sam Davies, 31, from Lancashire, said her birthmark would always become itchy and raised when she was pregnant, and it even became a sure sign that told her she was carrying a child. But on her fifth pregnancy, it began to swell and pulse (pictured, right), and she was eventually rushed to hospital when it exploded, splitting the front of her forehead open. Doctors realised that the raised birthmark was actually the tip of numerous tumours, and found some cancerous cells, so did emergency surgery making a huge, cross-shaped incision on her forehead (inset) to remove them.

Heidi Loughlin, 32, from Portishead, near Bristol, delayed life-saving cancer treatment in the hope of giving her unborn baby a fighting chance. The Met Police officer was three months' pregnant when she was diagnosed with a rare and aggressive inflammatory breast cancer earlier this year. She was offered an abortion by doctors who told her she should start life-saving treatment immediately, which would have been harmful to her unborn baby. However, she chose to delay the treatment until December 11, when her daughter was born by C-Section. Ally Louise Smith was born weighing just 2lb 5oz (left), but died at just eight days old. Now, in a heartbreaking blog post, Mrs Loughlin, who is also mother to Noah, two, (inset) and Tait, one (right and inset) announced that doctors believe the cancer may have spread to her lungs. She said: 'I can almost see myself swimming in the wake of a ship wreck. I feel exhausted and feel that I'm fighting an impossible battle as wave after wave forces me back.'

Chantelle Harris, 29, from Bedworth, Warwickshire, says she will feel 'amazing' on her big day after a breast augmentation boosted her cup size from a C to an E following her slim-down. At her heaviest, the cosmetics supplier weighed 21st (inset) and after failing every diet, she decided she needed a £6,000 gastric band to beat the bulge. One month later, Chantelle, left after her transformation, met her now fiancé, Marlon Powell, 30, who proposed last year. But she refused to walk down the aisle without paying a further £6,000 on the implants to complete her transformation.

Kirby Sheen, 24, was testing a battery in the device when it blew up, splitting her eyelid in two (inset). The mother-of-two (left before the accident) needed surgery at Manchester Royal Infirmary. She says she could be scarred for life following Wednesday's incident. She said she will never use an e-cigarette again and wanted to warn others of the potential dangers. 'All I can remember is a puff of smoke and a bang, I knew something had hit me because I had blood pouring from my face,' she said.

Alana Clark, 51, from Bristol, was unable to speak or walk after a severe stroke at 36. But now she has been crowned winner in a world championship bodybuilding competition after taking the competitive fitness world by storm. The mother-of-two dedicates her training to her late son, Tom, who died four years ago in a car crash aged 19, and she says she sees his face whenever she's on stage.

I should make clear I'm not unfamiliar with the hypnotherapist's chair, having already sat in two in the last eight years. So would this time be any different? I visited Max Kirsten's Knightsbridge clinic in December 2015 (main), desperate to stop my social smoking habit once and for all. He has already got Adele and Ewan McGregor (left) to quit. So if Max (top right) couldn't help me, who could?...

The interactive chart which calculates the likelihood of someone's cause of death based on their age, gender and ethnicity, has been created by UCLA statistician Nathan Yau. It shows how the age you are today can affect what you are most likely to die of at various stages in your life. While a baby born today is most likely to die in the first few years of life from a congenital problem, a man who is 30 today who dies at the age of 80 is most likely to be killed by a circulatory problem - such as a heart attack or stroke - or by cancer, the chart reveals.

Joanna Moorhead had breast cancer last year, and had a lumpectomy. She was in complete denial about her diagnosis - and that's how she liked it. She liked the fact that her daughters didn't worry about her being ill, because she refused to make a big deal out of having cancer.