Sometimes it feels like the number of things that stop working in your body directly correlates to the number candles on your birthday cake.
But you can regain some control in a number of ways - improving your strength is one of them!
Muscle strength is important for bone health, balance and just being strong enough for daily activities, such as climbing stairs or carrying groceries.
Regular muscle strengthening has also been shown to help you manage blood pressure, blood sugar and blood cholesterol levels, as well as prevent and control heart disease and type 2 diabetes.
Recent research also shows it's good for your brain, according to Professor Maria Fiatarone Singh, a geriatrician at the University of Sydney.
AFTER 30 IT GETS TOUGH
Each decade from the age of 30 we lose 3-5 percent of the muscle mass we naturally carry, which causes us to lose muscle function - a condition called sarcopenia.
But this doesn't mean you necessarily end up frail, Professor Fiatarone Singh said.
''There are studies on men in their 70s who'd been lifting weight for 15 to 20 years and their muscles looked identical to that 20-year-old men in terms of size and strength.'' she said
It's never too late to get started! Even if you've never picked up a weight in your life.
''We have muscle biopsies of people over 100 years old and you can see changed in their muscle cells, even at that age.'' The Professor says.
''High-intensity resistance training is the best way to increase and maintain muscle function."