Our bodies contain about 60 percent of water as it is a very crucial to our well-being. However, for many of us, leading a busy life can sometimes alter our water intake such that drinking water daily might be somewhat of a challenge.

“Most people aren’t consciously thinking about getting enough water each day,” said Anne L. Donnelly, M.D., Chair of Family and Community Medicine for the Crozer-Keystone Health System. “Carrying a reusable water bottle with you throughout the day is a good habit to start as a reminder to drink up.”

While there isn’t a scientifically backed answer for how much daily intake of water is enough, however, it is universally agreed upon that there are numerous benefits to getting enough of it. The link between hydration and health is very important as staying hydrated helps your body with things such as effectively lubricating joints, regulating body temperature, production of saliva and mucus, circulating oxygen throughout the body, preventing kidney damage and even boosting the health of your skin, among others.

Nonetheless, here are some common signs of dehydration that might often go unnoticed during the course of your day-to-day activities.

1.  You easily catch every cold that spreads around your office

According to Harvard Medical School, having a weak immune system can be a strong indicator that your diet and water intake need huge improvements.

Water can boost a weak immune system and while skipping a few glasses of water during the cause of your day won’t lead to you contracting a flu, however, allowing your body to become chronically dehydrated can leave you vulnerable to common illnesses like a cold.

2.  You suffer from bad breath

Once you are dehydrated, you experience dryness all over your body, including your mouth and saliva production slows down when you're dehydrated, According to WebMD.

Due to the fact that saliva has antibacterial properties, not having enough in your mouth can lead to an overgrowth of bacteria in the mouth, in turn causing foul breath.

3.  You have dark circles under your eyes

According to Healthline, dehydration is one of the most common culprits when a person suffers sunken or dark skin around their eyes.

This is largely because the skin around the eyes is very close to the underlying bone, and lacking fluids in this region can cause blood vessels to become a lot more prominent.

4.  Your appetite is growing more than usual

One the most confusing signs of dehydration is a perceived increase in appetite. For most people, this thirst is usually mistaken for hunger.

“Mild dehydration is often masked as feelings of hunger, when really your body just needs fluids,” said a spokesperson for the American Academy of Nutrition and Dietetics Alissa Rumsey, RD, in a report.

5.  You're having a lot more sugar cravings

“Cravings for sweet foods are common also because the process of glycogen production involves water and glucose, the body's circulating sugar. Dehydration makes it more difficult for the body to produce glycogen, not just release it,” said Joan Kent, Ph.D. in a LinkedIn article.

Dehydration can actually lead to an individual having more sugar cravings as sugar is a quick and easy source of glucose. Therefore, if your body isn’t getting sufficient water, you may discover that you begin to crave sweets, cookies or fruits a lot more often.

6.  You aren’t sweaty after heavy workout sessions

Another sign of dehydration is if after a gruesome workout, your skin still feels considerably dry and fresh.

According to Aaptiv, the most common reason for not emitting enough sweat in such scenarios is because you’re severely dehydrated.

Therefore, once you’ve reached this stage of dehydration, it is advisable to drink enough water immediately and possibly seek medical attention if you begin experiencing other signs of dehydration.

7.  You feel drowsy despite getting enough sleep

Dehydration causes the body to underperform and according to the UK's National Health Service (NHS), tiredness and fatigue are often common signs of dehydration.

Therefore, if you still feel considerably slow despite getting a full eight hours of sleep the previous night, it is advisable to drink a few glasses of water.