SCIENCE CAPSULES

      We all know 'bot-belly' is not good for us .   How much life we will lose because of  big belly ?   Here math -( a little) comes into play.        First, we  have to  find waist to height ratio - r.   Suppose your height is 172 cm and your waist perimeter are 96  cm.  The ratio is 96/172=0.56 .   You can have the ratio up to 0.5.  More than 0.5 is not good .   That is your waist  circumference  should not exceed half of your height-both for men and women.       Suppose you are 30-year-old nonsmoking male .   You can calculate the 'years of life that will be lost' using the equation given below.  Years lost -y = 616.67r^3 - 920r^2 + 467.81r - 81.   r-waist to height ratio.        It is  a  ugly polynomial equation .   We have similar equations for male aged 50 and 70; for female aged...

       What is your "total daily energy expenditure" (TDEE)? How to balance  it ?    Let us learn        First, we  must  calculate RMR- Rest metabolic rate .   It is the daily energy your body would burn in an awake, non-fasting, at rest rate.   For men,   RMR = 4.5W+15.9h - 5a+5   for women   RMR = 4.5w + 15.9h -5a-161   w-weight, h-height, a - age.       Now, you know your RMR.  Next you must find your activity factor .   The following table helps.   Level of activity                       activity factor   No physical activity                       1.2   Light-intensity exercise   1-3 days /week                                1.4   M...