In this episode of The Upgrade we're taking a closer look at alcohol - why we drink, what it does to us, and how to quit, if we're so inclined. We're joined by author Annie Grace, author of the book This Naked Mind: Control Alcohol, Find Freedom, Discover Happiness & Change Your Life.

A recent post from Facebook acknowledged that Facebook is bad for your mental health. To remedy this, Facebook want you to use more Facebook.

Wait, what?

I have a bad habit. On Saturday nights, after a few glasses of Chablis and a night of doing nothing, I take a trip through my online wishlist looking for something to buy. It's a costly habit that's filled my home with with cheap books, expensive Gundam model kits, and a few E-Mount lenses I haven't exactly gotten around to using.

Former Design Ethicist at Google and founder of the non-profit Time Well Spent, Tristan Harris has been making the rounds lately, talking about how technology is engineered to be addictive and hijack our attention. He's pretty persuasive, comparing the lure of your phone to the that of a slot machine.

Some of us can definitely say we have a sweet tooth. Whether it’s cakes, chocolates, cookies, lollies or soft drinks, our world is filled with intensely pleasurable sweet treats. Sometimes eating these foods is just too hard to resist. But is it actually "additive" in a biological sense? Let's take a look at the science.

Most parents wish they had more time to spend with their kids. They also waste untold hours staring at their smartphones. It doesn't take a child genius to see the connection here. If you spend a chunk of every weekend checking social media apps and surfing the web, it might be time to put your children in charge of your mobile devices.

Here's a novel solution. This weekend, let your kids reset the password or parental lock on your phone - without watching them do it.

iOS/Android: If you or a loved one is struggling with substance abuse, gambling, alcohol, eating disorders or some other addiction, Addicaid may provide you with one option for recourse, or at least an outlet for you to confide in someone who understands.

From the headlines, prescription painkillers sound pretty scary. Some of the people who take them switch to heroin, and some die of overdoses. The problem is so bad that the US FDA has mandated black-box warning labels about the risk of abuse. But at the same time, these drugs are common and useful tools to manage pain.

Your lips are dry, so you apply a little something soothing from a tube or a tiny jar or one of those weird golf ball things. Aah, relief. But as soon as it wears off, you need more. The cycle repeats all throughout the colder months. Are you practicing responsible skin care, or have you become addicted?

Unless you're a masochist and/or sociopath, you probably don't indulge in bad habits by choice. Instead, it's usually something you "fell into" and can't seem to navigate your way out of. This infographic from Vegas Extreme Skydiving explains the psychology behind bad habits along with some tried-and-trusted tips to help you break them.

You've probably heard the phrase "addictive personality" tossed around before. The general idea is that some people are more prone to addiction because of their personality traits. This is a bit misleading though, and SciShow explains why.

Dear Lifehacker, Like many people I've found it hard to put down an addictive game on occasion, but recently it has become more of a problem. Gaming obsessively until late at night and on weekends has negatively impacted my work and social life, to the point where I feel I need to do something about it. How can I battle my gaming addiction?

There aren't many of us who don't have some bad habit we'd like to quit: smoking, sweets, shopping, nail-biting, porn, excessive checking of social media, other distractions. The problem is that we think we don't have the willpower, faced with past evidence of failure after failure when we've tried to quit before.

Dear Lifehacker,

Is it possible for someone to actually be addicted to the internet? I mean, we all love our phones, and maybe I check mine whenever it buzzes, but is that the same as being addicted to alcohol or drugs? I've heard of people being so addicted to video games that they forgot to eat or feed their kid. How much of it is real psychology and how much is technophobic hype? Sincerely, Glued to My Gadgets

Hey Lifehacker, When I have a raging headache and I go to the chemist for some Nurofen Plus, the last thing I need is for some teenager to interrogate me about what I need them for. As far as I'm concerned it's none of their business whether I intend to take them as directed or freebase them in a primary school playground -- I'm an adult purchasing a legally-available product. What are my rights and responsibilities in this situation, and can they refuse to sell them to me if I give an answer they don't like?

If you're a smoker, you probably frequently wonder about how your habit could be affecting your appearance. Just how much older are all those ciggies making you look? This photographic study of identical twins with different smoking histories provides a chilling answer.

The rise of online gaming via MMORPGs, Facebook and video game consoles could be putting kids' brain development at risk and may also be causing serious social disorders, according to new scientific research. At a recent Australian Science Media Centre briefing, child psychiatrist Dr. Philip Tam explained the chief causes of so-called "Internet gaming disorder" along with the warning signs that parents should look out for.

A new scientific study into electronic cigarettes (AKA e-cigarettes) has found that the quitting method provides similar success results to nicotine patches. In other words, they are just as effective as other established smoking cessation aids in helping smokers to quit.

The next time a 20-something colleague offers you the use of their phone, you might want to handle with extreme care. A new survey from networking giant Cisco has confirmed Generation Y has a (literally) unhealthy addiction to their smartphones -- in addition to texting while driving, many freely admit to using their phones in the bathroom.