As I’m turning 36, some people ask how I manage to look younger than my age. I’ve asked the same question of many people who age well (from Jared Leto to a random fitness trainer who looks like 25 at 50). Here’s what all of these young-looking individuals do (and don’t):

1. AVOID alcohol. There may be some rare exceptions, but in general, alcohol (as well as other addictive substances) makes people less healthy and visually older.

2. Sleep a LOT. Sleep is when your body repairs itself. You can’t borrow it: lack of sleep during the week can’t be compensated with oversleeping on the weekend.

3. Do NOT overeat. Excessive weight makes people look older and correlates with dozens of illnesses. Typically I eat twice a day within a 6-hour window or once a day, no snacking. Eating 3+ times a day is just a (bad) habit.

4. EXERCISE. Moderate but regular exercise makes people look healthier and live longer. Personally, I don’t do much cardio (I’d rather walk/cycle/swim in the open air) and prefer moderate weights.

5. LIMIT stress. There are mental habits that help. It helps to believe that everything that happens is for the better. Stoic techniques such as negative visualisation and generally not giving a shit also work. Living close to nature makes all of the above easier.

6. Do NOT eat meat. Eating seafood and wild-caught fish is fine, but farmed red meat is something most people who look younger than their age avoid. I suspect the unhealthy nature of farmed meat has to do with the way livestock is raised and killed (growth hormones, fodder etc).

7. Live ALONE. Surprisingly, all the young-looking, middle-aged men I spoke with lived alone for most of their lives. It may be the result of their independence from the sleeping/eating/behavioral patterns of another person. Or it’s just correlation, and people who are independent from unhealthy societal norms are also independent in their personal lives.

Interestingly, you can find scientific explanations for most of these points (even the last one is defensible, e.g. there are multiple studies showing that sleeping alone improves the quality of sleep). I’ve been following these rules for over 10 years, with "more sleep" being the most difficult due to the nature of my work.

If you are twice as young as I am and looking for the key takeaway, here it is: NEVER DRINK ALCOHOL. Once you give up on alcohol, you’ll stop silencing your intuition, which will tell you what is good and what is bad for you. You will figure out everything you need to know by yourself and won’t depend on other people for advice.

As Telegram approaches 500 million active users, many of you are asking the question – who is going to pay to support this growth? After all, more users mean more expenses for traffic and servers. A project of our size needs at least a few hundred million dollars per year to keep going.

For most of Telegram’s history, I paid for the expenses of the company from my personal savings. However, with its current growth Telegram is on track to reach billions of users and to require appropriate funding. When a tech project reaches this scale, typically there are two options – start earning money to cover the costs, or sell the company.

Hence the question – which path will Telegram take? I’d like to make a few points to clarify our plan:

1. We are not going to sell the company like the founders of Whatsapp. The world needs Telegram to stay independent as a place where users are respected and high-quality service is ensured. Telegram must continue to serve the world as an example of a tech company that strives for perfection and integrity. And, as the sad examples of our predecessors show, that is impossible if you become part of a corporation.

2. Telegram is here to stay for a long time. We began developing our apps for our personal use over 8 years ago and have come a long way since then. In the process, Telegram changed the way people communicate in several aspects – encryption, functionality, simplicity, design, speed. This journey has just started. There’s much more we can – and will – bring to the world.

3. In order to make points 1 and 2 possible, Telegram will begin to generate revenue, starting next year. We will do it in accordance with our values and the pledges we have made over the last 7 years. Thanks to our current scale, we will be able to do it in a non-intrusive way. Most users will hardly notice any change.

4. All the features that are currently free will stay free. We will add some new features for business teams or power users. Some of these features will require more resources and will be paid for by these premium users. Regular users will be able to keep enjoying Telegram – for free, forever.

5. All parts of Telegram devoted to messaging will remain ad-free. We think that displaying ads in private 1-to-1 chats or group chats is a bad idea. Communication between people should be free of advertising of any sort.

6. In addition to its messaging component, Telegram has a social networking dimension. Our massive public one-to-many channels can have millions of subscribers each and are more like Twitter feeds. In many markets the owners of such channels display ads to earn money, sometimes using third-party ad platforms. The ads they post look like regular messages, and are often intrusive. We will fix this by introducing our own Ad Platform for public one-to-many channels – one that is user-friendly, respects privacy and allows us to cover the costs of servers and traffic.

7. If Telegram starts earning money, the community should also benefit. For example, If we monetize large public one-to-many channels via the Ad Platform, the owners of these channels will receive free traffic in proportion to their size. Or, if Telegram introduces premium stickers with additional expressive features, the artists who make stickers of this new type will also get a part of the profit. We want millions of Telegram-based creators and small businesses to thrive, enriching the experience of all our users.

This is the Telegram way.

It will allow us to keep innovating and keep growing for decades to come. We will be able to launch countless new features and welcome billions of new users. While doing that, we will remain independent and stay true to our values, redefining how a tech company should operate.