How serious is a -1.3 t-score for spine? can bone be regenerated with exercise and diet at age 66?

Let me explain: T-score show how much your bone mass varies or deviates from the average bone mass of a healthy adult. One standard deviation is equal to a 10-12% difference in bone mass. If your t-score is osteopenia... ( t-score between -1.0 and -2.5). I beleive you could.

Not horrible but it: It is not normal. Need to check for any secondary reasons for bone loss like hypothyroid dx, smoking, steroid use, etc. Check vit. D level & make sure good calcium intake along with vit d intake as well as with good nutrition & weight bearing exercise to build bone mass at any age!