Entrepreneurs by definition are passionate about their businesses. And with that passion comes hard work -- but there's a fine line between spending a little extra effort here and there and letting your company's needs completely consume you.

These six entrepreneurs share how they avoid burnout by keeping their workaholic tendencies in check.

Schedule friends and family time.

The first step toward overcoming your workaholic attitude is to see your habits for what they are. Self-proclaimed workaholic Justin Lefkovitch, CEO and founder of marketing firm Mirrored Media, found himself needing to change his ways after realizing he was subconsciously prioritizing work over all other engagements:

"It's sometimes easy to overlook time for friends and family or push it to the back burner," he says. "I like to have concrete plans in place to ensure I'm fostering my personal relationships. It also helps to be clear on my to-do list priorities so I can find a balance that doesn't compromise either."

Have mandatory days off.

If you don't trust yourself to take the occasional break, sometimes scheduling downtime is the only way to be sure you'll follow through.

"I used to get so wrapped up in my business that I would work for weeks at a time without taking time off," says Jonathan Long, founder of teeth whitening business Sexy Smile Kit. "I would wake up, work and pass out. I wasn't on a healthy schedule. My diet went downhill and I was overworking myself."

To combat these tendencies, Long pencils in mandatory gym time every morning and takes at least one weekend day off.

"The end result was more overall productivity," he says.

Leave the office on time.

If you're looking for a simple way to make an adjustment, not staying late at the office is a no-brainer.

"Even when I'm in full workaholic mode with deadlines, projects and all the other stuff that can come up, I still leave work just after 5 p.m. every day," says Dan Golden, president of digital marketing agency Be Found Online.

"As a father of two young children, this approach sets boundaries and allows me to spend time with my family. I enjoy the time, but then get right back to work after their bedtime. It's not a cure, but it's a great coping mechanism."

Get clear on what your goals are.

It also helps if you put why you're working so hard into perspective: It's so that you can lead the lifestyle you want -- which probably doesn't involve answering emails on your laptop at all hours of the day.

"I love creating businesses, but I keep in mind that work is always about the end goal, and the end goal is what I want out of life instead of business," says Adam Steele, owner and operator of link-building company Loganix.

"Work can be as addictive as any drug, and knowing what you want out of life can help shift the balance back to life quality when you start to go too far in the direction of a workaholic."

Delegate, delegate, delegate.

If you consider yourself to be a workaholic, chances are you want to have a hand in what everyone else is working on, too.

"I want to do everything and have a tendency to micromanage because I still think I can do things better than my amazing team," says Beth Doane, managing partner of communications agency Main & Rose.

"This [thinking] is ridiculous. My team is great and my entire company suffers when I try to do it all." Through trial and error, Doane has learned that delegating is a tough but necessary skill to learn in order to be successful at managing work-life balance.

Ask yourself "why."

Asking yourself a simple question -- and making a note of it somewhere -- can help you to see the forest for the trees.

"I love my work and it's tempting to burn the candle at both ends. So, I use a simple technique that prevents me from becoming a total workaholic: I write my 'why' in a journal or notepad at least two times a day," says Ajit Nawalkha, co-founder of coaching business Mindvalley.

"My personal 'why' is the reason I do what I do. Writing this down helps me focus and prioritize so work doesn't take over my entire world."