3 Ways You've Been Sabotaging Your Hair's Health Without Realizing It

We're all in a rush, but don't cut corners when brushing your hair. It's essential that you're gentle throughout this process, especially when you're working with wet strands. "Water weakens the bonds within strands of hair, removing up to one third of its strength," explains Skjoth. "Wet or damp hair can therefore be more easily broken, ripped, or torn out when combing or brushing." We like using the Wet Brush ($9) for postshower styling, as it has flexible bristles that won't tear out hair.

Furthermore, rough tugging on knots will weaken and possibly permanently damage your hair follicles, which are responsible for growth. Work on small sections, starting at the tips of your strands and working your way up as you detangle. If you have long hair, it's even better to hold your hair tightly at the midlengths while brushing so any tugging is absorbed by your fist, not your scalp.

If your strands are looking brittle and lifeless, what you are eating could be to blame. Skjoth shared that intensive low-fat diets can cause these problems with your hair.

"Forget about all the low-fat food and seek out full, healthy fats instead," he said. "Your hair, your skin, and, for that matter, your overall health will thank you." He recommends fatty, wild-caught fish like mackerel, herring, sardines, and salmon; avocados, seeds, and nuts; cold-pressed extra virgin olive oil; and plenty of dark greens.

"These fats heal and are great for your hair, so make room in your diet for those foods in particular," he noted. He also advised bumping up the protein in your regular meals. Protein is a building block of keratin, which makes hair strong and healthy. Skjoth particularly likes recommending grass-fed red meat, milk products (including butter and Greek yogurt), eggs, and poultry, which are nutrient-dense from the grass.

If you cut back on sugar and simple carbs like white rice, pasta, and bread, you'll see an even bigger difference in your hair. "They are devoid of essential nutrients your hair (and the rest of your body) needs in order to remain vibrant and strong," Skjoth explained. "The lack of high-quality micronutrients, lack of trace elements and certain vitamins, the high percentage of processed carbohydrates, and lack of fibers are detrimental to healthy hair growth."

Finally, reconsider what kind of water you drink. Spring water imported from Europe (in particular, France, Italy, and Iceland) is loaded with unprocessed, essential trace minerals like iron, calcium, magnesium, and sulfate, which can improve overall body function. Look for brands like Evian, Volvic, Acqua Panna, San Pellegrino, and Icelandic Glacial.

It seems obvious that healthy hair starts at the scalp, but so many of us are overlooking its health in favor of convenience. Dry shampoo may be a time saver, but using it too frequently can irritate your scalp, clog the hair follicles, and eventually lead to hair loss. (Learn more about dry-shampoo-induced hair loss here.)

Instead, reduce your use of dry shampoo to a max of two days in a row and wash your hair regularly with a shampoo that maintains your scalp's pH levels, such as Harklinikken's pH Shampoo ($36). Be sure to really massage your scalp with your fingertips when washing to ensure you're removing any and all sebum, dirt, and product buildup.