James Gallagher finds out if we've turned into a nation of grinders after reports from dentists of increased clenching and cracking of teeth. Margaret McCartney answers your feedback about the new weight-loss drug, exercise for your back, sperm counts and then goes for retail therapy with James to discover how useful shopping data could be for understanding our health.

James meets Ian who has Parkinson's disease and hears how ballet has helped with his symptoms, as a major new review of the evidence shows exercise really does make a difference. And microplastics which can be found in drinking water and food stuffs have now been identified in human vein tissue. James unpicks what this means for our health. Presenter: James Gallagher Producer: Erika Wright and Harry Lewis

James Gallagher asks whether a weight-loss drug on the NHS heralds a new era in tackling obesity? He meets Jan who lost nearly 4 stone after being part of a trial taking a weekly injection of Semaglutide for 15 months alongside advice on meals and exercise. However, when people stop taking the drug the weight starts to go back on. Add to that supply shortages with heightened private demand and some doctors think the drug is as controversial as they come. James unpicks the ethical and societal dilemmas against a backdrop of half the world's population projected to be overweight or obese by 2035. Producer: Erika Wright Declared interests Dr Margaret McCartney: "No conflicts to declare." Prof Sir Stephen O’Rahilly : "in the past has been a remunerated consultant and has had research collaboration with Novo Nordisk." Professor Naveed Sattar: "consulted for and/or received speaker honoraria from Novo Nordisk, Abbott Laboratories, Amgen, AstraZeneca, Boehringer Ingelheim, Eli Lilly, Hanmi Pharmaceuticals, Merck Sharp & Dohme, Novartis, Pfizer, and Sanofi; and grant support paid to his university from AstraZeneca, Boehringer Ingelheim, Novartis, and Roche Diagnostics. He was a co-investigator in lifestyle trials such as DiRECT and co-lead for STANDby."

Lower back pain impacts millions of adults every year and, in many cases, diagnosis can be murky. Non-specific pain is personal and complex, driven by factors such as injury, sensitivity and perception. But are there methods to help manage back pain and live a happier life in the process? James Gallagher is joined at a yoga studio in Stockbridge, Hampshire by Emma Godfrey, psychology researcher at Kings College London, chiropractor David Elliot, physiotherapist Richard Husselbee, and yoga instructor, Alison Trewhela to answer all your back pain questions (and takes to the mat himself to try some gentle healthy lower back poses). Producer: Julia Ravey

James Gallagher investigates whether there is a decline in male sperm including the results of his own sperm count analysis. He meets a couple who conceived after having treatment for a varicocele, enlarged veins in the testes that can heat the sperm up and the leading known cause of male infertility. And James is joined by leading scientists in the field to debate whether sperm counts are falling. Producer: Erika Wright

Can magic mushrooms help your mental health? James Gallagher cuts through the hype and examines the evidence to find out if psychedelics can treat depression. Presenter: James Gallagher Producer: Geraldine Fitzgerald

The cost of everything is soaring, but what toll is that taking on our health? We’re at a food pantry scheme in Coventry meeting mums Danielle and Ellie to find out how hard putting food on the table has become. Dr Megan Blake and Prof Sir Michael Marmot help explain what that does to our bodies now and in the long term. Get in touch: InsideHealth@bbc.co.uk Presenter: James Gallagher Producer: Geraldine Fitzgerald

Dawn had a heart attack but 'powered through' making the Christmas dinner before seeking help - because she put her symptoms down to anxiety and backache. Her interventional cardiologist in Newcastle-upon-Tyne, Professor Vijay Kunadian, sees many women like her who aren't seen quickly enough or given the right medication to improve their chances of survival. We hear about research which reveals that women are much more likely to die of a heart attack than men because of delays and lack of treatment. Learning the piano can help to improve the way our brains process audible and visual information - a task we carry out effortlessly when looking and listening as we do things like cross the road safely or chat with friends. Dr Karin Petroni explains how even just a few microseconds in processing speed can make a difference - so she's going to carry on playing drums. James Gallagher's piano version of Giuseppe Verdi's La donna è mobile/When the saints go marching in (trad) arranged by Nancy Litten/Kenneth Bartels (ABRSM)

James Gallagher asks whether the next pandemic might be an invasive fungi? Most people think of athlete's foot or fungal toe nails but the World Health Organisation recently issued the first ever list of life threatening fungi. James hears stories of hospitals being shut down, a ruined honeymoon and fungal infections that consume human tissue leaving terrible disfigurement. Add to that ‘The Last of Us’ a hit video game turned new TV series where a parasitic fungus manipulating the brains of ants has jumped to people. Sounds fanciful but while this particular fungus couldn’t cross from ants to humans, Dr Neil Stone explains why invasive fungal infections are on the rise and a potential pandemic should not be dismissed. Producer, Erika Wright

The rise of antibiotic resistance means that we need alternatives to fight infections - and some healthcare professionals are turning to maggot therapy to help clean up wounds. They might be treating people living with diabetes who can experience a loss of sensation in their feet because of high blood sugar levels. Damage to their blood vessels can also slow down healing. Melanie Rix Taylor from Swansea has type 1 diabetes and had a quarter of her foot amputated because of an infection. When the skin around the wound started to die she was offered maggot therapy. After just a few days the larvae placed on her foot in a small bag - a bit like a teabag - digested the dead skin, helping to promote healing. Her Podiatrist at Morriston hospital Ros Thomas explains how she's used maggots hundreds of times, with great success. The larvae of the greenbottle fly species Lucilia sericata are supplied to the NHS on prescription with an average cost of £200-£300 from BioMonde in Bridgend. James visits their fly room with entomologist Micah Flores, helping him to collect some of the fly eggs which are then thoroughly cleaned and prepared so they can then be used on patients. As well as consuming dead tissue, the larvae also produce anti-microbial secretions and help to promote healing. Professor Yamni Nigam from Swansea University - who's advised television programmes like Casualty about storylines on maggot therapy - is a big fan of the creatures which have a long history of being medically useful, long before scientists found the scientific proof to support their use. She wants to help people to get over their initial disgust so that they can be used more widely, instead of as a last resort. Photo credit: Maggot/BioMonde