Doctor's one exercise flattens your stomach 'without doing hundreds of sit-ups'
According to the health expert, the exercise is more effective at tightening stomach muscles than sit-ups and crunches ...
Doctor says 'drink this every day to keep viruses, cold and flu infections away'
As the NHS battles a winter quad-demic of covid, flu, norovirus and RSV, the public is being urged to make healthy choices ...