tiny bit of whiskey , lemon and honey is home made remedy for coughing and throat treat nose with saline water for stuffy nose, make sure they get rest if its effecting their sinuses , temporary relieve is a ice/pack/hot/cold pack helps alot ,if you have medication use it , if the cold is in its first stages ,it is easier to combat, but even then it might take time if becomes more serious /complicated contact a medical professional
What doesn't limit the range of moton from the things which you've mentioned would be age. Age per se doesn't really limit the range of motion - while there are factors which negatively influence our range of motion and which are strongly correlated with age, it is hard to say that age itself would be the cause of a limited range of motion.
I'd advise Ayu to read over this chart:
- Eat whole and processed foods.
- Eliminate Food Alergies
- Treat any infections
- Replenish or attempt to replenish your digestive enzymes.
- Get good/friendly fat.
- Hope this helped, good day!