Start with your own doctor. The weight loss post says that first, on the reasonable grounds that somebody who has known you for years can tell you what a stranger selling a programme cannot, and that asking whether you are well enough to exercise comes before choosing which exercise to do.
That sensible instinct runs through the health writing. The protein piece asks about nutrient density rather than about weight or calories alone, and prefers poultry cooked almost any way except fried.
The back pain post identifies sitting still as a likely cause rather than a consequence, and its advice begins with walking around the neighbourhood in the evening instead of anything strenuous.
There are pieces on the causes of pimples and on the myths that attach themselves to losing weight, plus an affiliate marketing introduction sitting apart from the rest.
Take the back pain post if you have been sitting all week and aching by Friday.