
Flexing your biceps hard not just shows off your muscles, but is also an example of an isometric exercise.
As we get older, we need to realise that a taut body may not always be within reach and have realistic expectations of what is achievable.
Some females over the age of 50, like Madonna, Jennifer Lopez and Michelle Obama, can show off their toned abs and arms, but it takes a lot of effort and discipline, along with the help of personal trainers, nutritionists, etc.
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