By Eileen Shim  April 16, 2014

The news: Every day, the push toward national legalization of marijuana seems more and more inevitable. As more and more politicians and noted individuals come out in favor of legalizing
or at least decriminalizing different amounts of pot, the mainstream acceptance of the recreational use of the drug seems like a bygone conclusion. But before we can talk about legalization, have we fully understood the health effects of marijuana?

According to a new study published in the Journal of  Neuroscience, researchers from Harvard and Northwestern studied the brains of 18- to 25-year-olds, half of whom smoked pot recreationally and half of whom didn't. What they found was rather shocking: Even those who only smoked few
times a week had significant brain abnormalities in the areas that control emotion and motivation.

"There is this general perspective out there that using marijuana recreationally is not a problem — that it is a safe drug," said Anne Blood, co-author of the study.  "We are seeing that this is not the case."

 The science: Similar studies have found a correlation between heavy pot use and brain abnormalities, but this is the first study that has found the same link with recreational users. The 20 people in the "marijuana group" of the study smoked four times a week on average; seven only smoked once a week. Those in the control group did not smoke at all.

"We looked specifically at people who have no adverse impacts from marijuana — no problems with work, school, the law, relationships, no addiction issues," said Hans Breiter, another co-author of the study.

Using three different neuroimaging techniques, researchers then looked at the nucleus accumbens and the amygdala of the participants. These areas are responsible for gauging the benefit or loss of doing certain things, and providing feelings of reward for pleasurable activities
such as food, sex and social interactions.

"This is a part of the brain that you absolutely never ever want to touch," said Breiter. "I don't want to say that these are magical parts of the brain — they are all important. But these are fundamental
in terms of what people find pleasurable in the world and assessing that against the bad things."

Shockingly, every single person in the marijuana group, including those who only smoked once a week, had noticeable abnormalities, with the nucleus accumbens and the amygdala showing changes in density, volume and shape. Those who smoked more had more significant variations.

 What will happen next? The study's co-authors admit that their sample size was small. Their plan now is to conduct a bigger study that not only looks at the brain abnormalities, but also relates them to functional outcomes. That would be a major and important step in this science because, as of now, the research indicates that marijuana use may cause alterations to the brain, but it's unclear what that might actually mean for users and their brains. 

But for now, they are standing behind their findings. 

"People think a little marijuana shouldn't  cause a problem if someone is doing OK with work or school," said Breiter. "Our data directly says this is not so."

BY SHANNON KAISER  
While cruising in Hawaii with Wailua River guides, I asked my kayak guide, Annie, what her favorite part about living in Kauai was.

She smiled brightly and beamed, "I'm so rich here. I mean, I don't have a lot of money, but my quality of life is abundant. I get to do what I love every day, and that makes me rich.”

Living a life you love is possible for everyone. My conversation with the happiest kayak girl in the world stirred up ideas of other happy people who practice happiness. People who have made happiness a habit and it beams from their pores. Because happiness is a choice and we can all cultivate it.

But the happiest people in the world have some habits they never talk about. When you live and breathe happiness, you feel more connected to your life. More grounded and purposeful. Here are seven habits happy people have but don’t talk about.

1. They put themselves first.

They know self-love isn't selfish. Happy people put their needs first because they see the power of showing up fully for others. When you take care of yourself, you help everyone else. If you sacrifice your needs in order to help others, you're only showing up as half of yourself.

2. They embrace impermanence.

People who feel at peace with their life recognize everything has a time and place. Relationships, jobs and experiences are all part of a bigger plan. Happy people recognize life is a balancing act between holding on and letting go — and they're comfortable releasing things that no longer serve them.

3. They're unapologetic about their desires.

Some may call them selfish, crazy, even ridiculous, but happy people make their dreams come true and focus on their goals with fearless force. They often manifest what they desire fast. Because they believe in their dreams. They live life to the beat of their own drum and will follow their heart with courageous energy. You can’t stop a happy person from reaching his or her goals. They know life is short and not following through would feel like premature death.

4. They don’t worry about money.

Happy people are extremely generous. They know the more they give, the more they get in return. But they don’t give expecting anything in return. This energy creates an abundant mindset that brings more wealth to them.

Happy people have a healthy relationship with money and they have learned it is connected to their self-worth. The more they value themselves, the more money they attract. Instead of worrying about money, they take steps to make more money and create more flow. This often happens because they do what they love daily, which creates a rich, deep connection to their own life. They also realize we don’t need a lot of money to be happy. It's experience that makes life worthwhile.

5. They don't need you to like them.

The happiest people I know don't care what others say or think about them. The only thing that matters is that they like themselves. This self-confident, infectious energy often attracts a lot of people. Happy people often have good friends. But happy folks are not dependent on your liking them.

6. They know rejection is protection.

Happy people don’t take rejection personally. They know in the big scheme of things, life will always give them what they really need. So the guy who didn’t call back, the potential job that didn’t pan out, or the loan rejection letter are all universal signs that it wasn’t the best fit. Trust that something better is on its way.

7. They see everyone as equal.

The happiest people see no difference between anyone and any situation. They don’t judge, condemn or point out flaws in others. They won’t try to prove you wrong. They embrace all of life’s diversity and celebrate the contrasts.