Adriane Berg, founder of Generation Bold and author of Bottom Line’s Aging for Beginners blog, suggests that people check their biological age before doing their financial planning for retirement. But what does she mean by biological age? As opposed to chronological age (which is simply how old you are in terms of years), biological age has to do with your health, fitness, and mental and emotional health. Biological age can be determined by any number of free tests online. This age is useful for decision-making purposes, especially with regard to retirement and financial matters that are affected by how much longer you are likely to live. And by focusing on yout biological age, you can take action and actually live longer.