We know that obesity is a multi-factorial condition, quite far from the simple calorie-in calorie-out model most tend to believe. Can our environment too contribute to unwanted weight gain? How do our environments encourage obesity?
How does blood grouping work and why do we have blood groups? All of us know the terms A- and B+ and so on, and is that the only classification that exists for grouping of blood types? How does all of this work?