The last 150 years has seen medical inventions that have saved millions from premature death. Today, the march of invention continues with new products and gadgets coming to the market in record speed.

The problem, if it could be defined as a problem, is the sheer number of gadgets that can be used to improve one’s health. Within an ever-growing lineup, what should warrant your attention?

In a glutted marketplace, knowing how to narrow your choices has become a handy skill. It starts with information. Here are the latest inventions on the market that are worth a second look.

For those on the ketogenic diet.

The ketogenic diet, while proven to be effective, can be complicated to follow. It is often prescribed to patients by doctors for those who have diabetes, epilepsy, cancer, or Alzheimer’s disease. More recently, it has received attention for its weight loss benefits.

At its core, a ketogenic diet is one that is low in carbs and high in fat. Typically, the standard keto diet consists of food eaten in the following ratios:

  • 75 percent fat,
  • 20 percent protein, and
  • 5 percent carbohydrates.

Ketones are the primary fuel for a person on a ketogenic diet.Which is why frequent checking of ketone readings is important. This is made possible with ketone strips that measure how the body is doing in producing ketones.

Deep ketosis is between 1.5 mmol and 3.0mmol/L and is effective for weight loss. Readings over 6.0 mmol/L show the beginning of a dangerous state known as ketoacidosis.

For those who need a colonoscopy.

Getting screened for colon cancer is no one’s idea of fun. The scoping procedure involves fasting, anesthesia, and a rectum insertion. All of which is more involved than an X ray or a blood test.

But what if a simpler method of screening was used? What if a person could swallow a pill that had a tiny camera in it? And that camera could transmit pictures to a doctor’s computer? Sound too far-fetched? A health center in the Chicago area has begun to offer this alternative to the traditional colonoscopy.

Colorectal cancer is the second leading cause of cancer death in men and the third in women. Early detection is essential to reducing the rates of colorectal cancer mortality. Those in the medical community are hoping this camera in a pill will lower resistance to screenings for colorectal cancer.

For dieters who need to track caloric intake.

Heard that keeping track of caloric intake can help you lose weight and keep it off? In one surprising study, researchers found that people who logged in caloric intake lost twice as much as those who did not.

But what about for those of us with no time to spend trackingeverything we put in our mouths? What then? Enter the Healbe GoBe. A wearable device, this tracker goes beyond calculating calories burned through movement. Astoundingly, it calculates the calories you are consuming through measuring the glucose in the cells via your skin. Among the many things it does, it also logs hydration, stress, and sleep levels. Of course, it is a heart rate monitor, as well.

Are you the type who can never manage to drink 8 cups of water a day? The Healbe GoBe will send you reminders when your hydration falls too low.

Some in the medical community remain skeptical of the science behind the formulas used to provide data. But advance users are stating that its accuracy is surprising.

For those who need to destress.

In the Attitudes in the American Workplace report, 80 percent of workers were found to feel stress while at work. With nearly half of the respondents stating they need help knowing how to manage stress.

What if you could put on a headband that would turn your stress levels way down? A new wearable is claiming to do just that. Called Melomind, the device contains headphones anduses Bluetooth to connect to your smartphone. Playing music and sounds tailored to your brain activity, it is designed to help calm a racing nervous system. Through neurofeedback, the headset reacts to your brain waves with music that is meant to calm and soothe.

Released in 2016, it has been followed by a series of headset wearables that also claim stress relief. Have an irate boss? Or are tired of listening to noisy coworkers? 5PM can’t come fast enough? Pop on a headset and get ready for your blood pressure to chill out.