It's easy to say, "Just be happy." But how, exactly, does one go about it?<br />According to Business Insider, science now has some proven techniques for achieving happiness.<br />First, get out in nature. Fresh air and sunshine really does have a measurable, positive impact.<br />Next, while you're out in nature, do a little exercise. Indoors or out, movement works wonders.<br />Finally, journal and verbally express your gratitude--and help others. Gratitude and altruism are miracle workers! <br />
