I was going some through articles about fitness and I encountered these two sentences.
- Lifting lighter weights often means you're able to perform more repetitions for each exercise you complete
- Lifting light weights won't build muscle mass no matter how much you pump
So I was wondering what is the difference between using light and lighter. Because if I use light for the first sentence and lighter for the second sentence, both sentences will still make sense.
What about these sentences?
- Running at a higher/high speed is better than running at a lower/low speed.
- Running for a longer/long distance is better than running for a shorter/short distance.
Personally I would use higher and lower because it sounds better. But I don't know if there are any rules that I should follow.