Melissa Martínez in Bathing Suit is "Divine"

Melissa Martínez is a journalist and TV host. She recently enjoyed a day in the pool. Martínez shared some photos on Instagram from the day. In it, she wore a blue swimsuit. Martínez captioned the post, "In the third photo I almost had a heart attack." How does she stay so fit? Read on to see 5 ways Melissa Martínez stays in shape and the photos that prove they work—and to get beach-ready yourself, don't miss these essential 30 Best-Ever Celebrity Bathing Suit Photos!

Martínez makes sure to workout on a regular basis. She opened up about what motivates her to stay in shape on her Instagram story. "I'm going to the gym in the morning because I like to eat donuts," she writes. "Because I love custard. So I'm not going to lose them and I have to go to the gym because otherwise the compensation law where would I be."

Martínez is all about having discipline. Especially when it comes to working out. "Discipline is doing what I have to do," she says on her Instagram story. "Even if I don't feel like it (…) Being disciplined will help you more than being encouraged."

Martínez makes sure to go to the gym. One thing she does when she's there is run on the treadmill. Martínez posted this photo on Instagram of herself on a treadmill at the gym. She captioned the post, "What I played. Don't look because you find." Running is a great cardio and aerobic exercise. Hopkins Medicine reports, "When you start out on your run, your body goes through a transition: Your breathing may become heavy, and you might notice your pulse quicken as the heart pumps harder to move oxygenated blood to your muscles and brain.

As you hit your stride, your body releases hormones called endorphins. Popular culture identifies these as the chemicals behind "runner's high," a short-lasting, deeply euphoric state following intense exercise. Surveys have revealed runner's high to be rather rare, however, with a majority of athletes never experiencing it."

One thing Martínez likes to do to stay in shape is going swimming. She shares a lot of posts on Instagram of herself in the water. She posted this set of photos of herself in the pool, captioning it, "A Sunday." She also posted these two pool photos. Better Health reports that swimming has a lot of benefits. "Swimming is a great recreational activity for people of all ages. Recreational swimming can provide you with a low-impact workout and it's a good way to relax and feel good."

Martínez has three dogs, and she spends a lot of time with them. Martínez shares a lot of photos of herself with her dogs. She shared this photo of herself lying in bed with one of her dogs. She captioned the post, "He knows I LOVE him and he takes advantage. 1 of 3." Harvard Health states, "There are also many psychological benefits to having a pooch around. Dog owners are less prone to bouts of loneliness, anxiety, and depression. Simply petting your dog can make you feel less stressed. One of the greatest benefits of owning a dog is that it encourages you to practice mindfulness — being in the present moment and fully appreciating life. Mindfulness can help you relieve stress and also improves your overall health."