Of course it does! And there are people for whom this influence can be catastrophic!

I don't think that you need to drink this. It is quite harmful for your health. Better will be to pay attention on other things like quality of water which you drink and air in your room or office. These factors are really very important. I recently searched some air purifier and found super fast reply from this site. I can recommend to choose models with ionic technology, they are the best in my opinion.

I limit myself to 3 cups of black coffee a day. On most days, I only drink one strong cup. I think you'll be alright as long as you stay below 2-3 cups a day. Try to drink less sugary drinks like cappuccinos and lattes. Also try not to take caffeine after 5-ish PM. Helps you sleep better.

Check out this post for more on this.

It doesn't matter if you use caffeine as long as you still get good sleep when you do sleep.

If you stay up all night then get eight good hours of solid sleep, that's OK. But I suspect you don't.

Sleep is the foundation of everything to do with health. You can exercise well, eat and drink well, breathe clean air, have good relationships, spend time in nature etc, but if you don't sleep well, none of it will work.

Just stop it.

Coffein and Taurin (another stimulant in energy drinks) are great if you only use them occasionally. Use them daily (or many times a day) and your body gets used to it or, in a bit longer term, gets addicted. On the other hand, when you become an addict, your body is so used to them they donʼt work anymore, so you need more to make them keep you awake.

Sounds familiar? Yeah, a lot of drugs work this way, too.

Also, there was a lot of research on the subject. Most found that an apple in the morning boosts your productivity much more significantly than a coffee. In fact, you should drink your first coffee somewhere between breakfast and lunch if you want to maximise the effect.

Another thing to consider is why you need to stay awake at night? Why canʼt you do your work during daylight? Ask this yourself (and answer honestly) in light of the fact that a good nightʼs sleep worths much more than a couple of lattes (in terms of both productivity and health).

I also say these out of experience; i used to drink multiple energy drinks a day during my twenties. I started to feel much better when i stopped it. I switched to drink one coffee late in the morning, and sometimes another one early in the afternoon, and it helped a lot. Then, few years later, I stopped drinking coffee altogether. I occasionally drink a latte (say, once a month) and when i do it provides me a great deal of extra energy.

So yeah. Just stop it. Oh, and ditch soda, too; drink a lot of clear water instead.

No teeeeeeeeeeea option? :(

I'm a coffee snob and caffeine addict, but I now limit it to two coffees totalling 3-4 shots of espresso per day (or equivalent amount of filter coffee). I rarely have it after 2-3pm; and even that's too late according to some advice - because caffeine stays in your system for quite a long time it can disrupt sleep.

Science isn't settled on the impact of a moderate coffee intake, many studies indicate benefits rather than harm. But it seems almost universal health advice to avoid sleep deprivation.

Energy drinks are a whole other problem. They have loads of sugar, caffeine and often other ingredients (taurine, ginkgo, guarana, etc) that can make reactions to them a bit unpredictable. Having seen them put someone in hospital with heart flutters I almost never drink them now.

If you're doing it specifically to stay up at night, it is probably worth considering the notion of diminishing returns, where your productivity drops as a prolonged coding session continues. I've seen quite acute cases during 24 hour hackathons - people can spend hours doing mistake-riddled work they could knock off in about an hour after a good sleep.

I like anything from 1 to 4 cups of coffee per day, without sugar. I don't think that has such a bad impact on me, but I know energy drinks has mainly because of the sugar or sweetener – they are both proven to increase risk of cancer if you take as little as 1 can per day.

I used to be a coffee addict in the past. I could easily drink 8-10 latte/cappuccino/mocha in a day. It had a negative impact on me. My anxiety level just got boosted each day and I was in a miserable condition.

Finally, I got rid of coffee and switched to green tea. Initially, you wouldn't like the taste, but you'll get used to it. It has many benefits and helped me in keeping my anxiety and weight in control.

I hope that helps. :)