An early retirement isn't for everyone. You may not have much socked away, for example, which would make retiring early a bit difficult. But if you have some savings, an early retirement may be more achievable than you think.

Here's a look at five reasons why you might want to retire as early as you can. See if they're enough to change your retirement goals and plans.

Below the printed words retire in 15 years and 5 years, and a red pencil has crossed out 15 years and circled 5 years.

Image source: Getty Images.

No. 1: Putting off retirement can be risky

The first reason to consider retiring early is because you don't know how long you'll live or how long you'll remain relatively healthy and active. Many people actually end up retiring early not because they want to but because they have to -- due to a job loss or a health problem or because they had to care for others. For this reason alone, it's worth being more aggressive in saving for retirement, in order to build a fat nest egg sooner rather than later.

No. 2: You hate your job

If you hate your job, it can be well worth retiring from it earlier than planned. That's because hating your job is a far-reaching problem, even affecting your physical and mental health.

Somewhere between 20% and 40% of workers are very unhappy at their jobs, according to various studies. Here are some of the consequences that have been found to result from hating one's job:

  • Depression
  • Stress
  • Weight gain
  • Sleep problems

Note that these health problems have corresponding additional problems, such as fatigue and irritability. The National Institute of Mental Health has noted that:

Health problems can occur if the stress response goes on for too long or becomes chronic, such as when the source of stress is constant, or if the response continues after the danger has subsided. With chronic stress, those same life-saving responses in your body can suppress immune, digestive, sleep, and reproductive systems, which may cause them to stop working normally.

People under chronic stress are prone to more frequent and severe viral infections, such as the flu or common cold.

On top of all that, unhappiness at work can lead to unhappiness at home, a less happy marriage, and a dysfunctional family life.

It's also worth remembering that retiring from a job you hate doesn't necessarily have to mean retiring from work altogether. It might just mean looking for, finding, and switching to a different job -- perhaps in a field that you've always wanted to try.

No. 3: You can be very productive in your retirement years

If you're not too interested in retirement because you're imagining being bored and unproductive, know that you can still be very productive while retired. A close look at your savings and retirement goals might make it clear that you can't quit working completely any time soon. But you might be able to retire earlier than you originally planned to if you keep working -- on a part-time basis.

Look for a job that's less stressful and, ideally, more enjoyable. Generating some extra dollars that way can help your nest egg last longer. You might be able to stay at your current job for a while (assuming you like it there), working part-time for a few years. Wherever you work, if you work, say, 10 hours per week and earn $12 per hour, you can generate about $500 per month, and that additional income could cover some major expenses, such as food and/or utilities.

It's actually good for many people to work a bit and make money in retirement, as jobs offer structure and socializing -- things that many people miss in retirement. 

A signpost for an intersection is shown, with one arrow pointing to now and the other pointing to later.

Image source: Getty Images.

There are other ways to be productive in retirement, too. If you're financially secure, you can volunteer for causes or organizations close to your heart, perhaps tutoring kids or leading museum tours. You might also make money by giving music or language lessons, selling crafts or baked goods you make, or doing freelance writing or editing.

You can use your more plentiful free time in retirement to work on improving your health, too. You'll have more time to prepare nutritious meals and go for long walks or bike rides or visit the gym regularly. If you can lose any excess weight, you may reduce your odds of developing diabetes or high blood pressure -- or if you already have various conditions, you may reduce their severity.

You may start sleeping better, too, as you won't have the stress of your old job and may no longer have to wake up early for anything. Here's a bonus: If you're healthier, you may live longer!

No. 4: You can avoid running out of money with annuities

Many people avoid retiring early because they think they should keep stockpiling money lest they run out of it too soon in retirement. One way to prevent that is to spend a chunk of your retirement funds on one or more fixed annuities. Doing so is kind of like buying yourself some dependable pension income, as you can set yourself up to receive monthly checks and even ones that are adjusted for inflation over time.

The table below offers an idea of how much you might get from a fixed annuity in today's economic environment, based on some recent quotes:

Purchaser

Cost

Monthly Income

Annual Income Equivalent

65-year-old man

$100,000

$540

$6,480

65-year-old woman

$100,000

$517

$6,204

70-year-old man

$100,000

$618

$7,416

70-year-old woman

$100,000

$593

$7,116

65-year-old couple

$200,000

$923

$11,076

70-year-old couple

$200,000

$1,032

$12,384

75-year-old couple

$200,000

$1,188

$14,256

Source: immediateannuities.com.

No. 5: It's not worth delaying Social Security

Finally, you may be putting off retirement because you know that for every year beyond your full retirement age -- which is 66 or 67 for most of us -- that you delay starting to collect your benefits, they'll increase by about 8%. And you may know that starting to collect early -- you can start as early as age 62 -- means your checks will be smaller.

But you may not realize that delaying isn't such a no-brainer decision. As the Social Security Administration has explained, "If you live to the average life expectancy for someone your age, you will receive about the same amount in lifetime benefits no matter whether you choose to start receiving benefits at age 62, full retirement age, age 70 or any age in between." After all, starting to collect early means smaller checks but many more of them.

It can still be smart to delay, but that's not the best move for everyone, and for some, starting to collect early may enable them to retire early. For one thing, it might allow them to keep some significant funds invested in stocks for the long run, aiming for growth.

An early retirement may be more within your grasp than you thought. At the very least, you may be able to retire a year or three sooner than you'd planned -- if you take some smart steps now.