Pre diabetes has been linked with long-term damage including to your heart, blood vessels and kidneys, even if you haven't progressed to type 2 diabetes. Prediabetes is also linked to unrecognized (silent) heart attacks.
Physical exercise lowers blood glucose levels and blood pressure, improves blood flow, burns extra calories so you can keep your weight down if needed, improves your mood, can prevent falls and improve memory in older adults, may help you sleep better. Start exercising after speaking to a doctor, start slowly and increase. Few types are walking briskly or hiking, climbing stairs, swimming or a water-aerobics class, dancing, riding a bicycle or a stationary bicycle, taking an exercise class, playing basketball, tennis, or other sports
Diabetics have raised blood sugar and when there is a lot of excess blood sugar in our blood stream, it signals our body to put that excess sugar in storage. We can store some sugar in our liver and muscles, however, when these are full our body start to store the extra sugar as fat. This of course starts to cause weight gain.
Yes, emergency room protocols have blood sugar check as one of the parameters. It may be done in patients with suspicion on deranged blood sugar levels.
The main thing to remember is that both are as serious as each other. Having high blood glucose (or sugar) levels can lead to serious health complications.