Ideally safe things.
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1. Drink more mineral water frequently , if you are at home
2. while driving use a chewing gum
3. in hot weather use mineral water added salt ( just 1 mg for 1 ltr aprox)
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Coffees that have caffeine or some other products containing caffeine. A "power" nap of approximately 90 minutes is ideal. Although the ultimate "keeper-upper" is a good night's sleep before...
i drank coffee, tea , took a cold bath that perk me up and busy myself with writing articles, that keep me from sleepy
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