get some decent players
No, Hallucinogens do not improve coordination, concentration and attention.
Yes,they improve concentration power..........
gum
sweet smelling ,flowers
improve our concentration
it is used to improve concentration
There are no flavors that help improve concentration. The only thing that has been proven to make you more alert is caffeine - either a small cup of coffee or tea. The main thing to improve your concentration is your attitude - if you decide to pay attention better, you'll do it.
Any. Concentration is the key.
Yes, there are over the counter medicines that are proven to improve concentration. Pharmaton and Berocca are two of the most popular energy supplements.
run faser;)
play more
You train and practice.