Mountains and their trails are filled with an extreme, surreal beauty during the winter season, from experiencing the crunch of snow under boots to witnessing the mountains wrapped in a white sheet of snow; they have it all.

As you trek in the higher-altitude region, one essential element that plays a crucial role in maintaining your health. Unfortunately, the winter season depletes most of it from your body. This vital element is none other than Water.

You know, I’m sure you must have experienced this too: During winter, your thirst tends to decrease, and drinking water often feels like the last thing you want to do. Yet, the amount of water your body loses remains the same or may even increase. This loss can occur as sweat that isn’t always visible, or as the foggy condensation on a window from your breath, or in the form of the vapour that appears when you exhale in cold air.

All of these factors contribute to dehydration more than most trekkers realise. High altitudes, thin mountain air, heavy clothing, and long, continuous walks can tire the body and accelerate fluid loss, often without anyone noticing.

You know, staying hydrated while being on the trek is not just about protecting your body from experiencing any dizziness or fatigue during the trek; it’s more about providing an adequate amount of energy to the body.

And since we have organised so many trekking adventures for different individuals, at different places. We often come across situations where a simple amount of water intake can turn a trekker's experience into an enjoyable one or an exhausting one.

And since we have organised so many trekking adventures for different individuals, at different places. We often come across situations where a simple amount of water intake can turn a trekker's experience into an enjoyable one or an exhausting one.

Hence, to ensure that your future journey won’t turn into an exhausting one. We have curated this article for you, which will tell you about the importance of staying hydrated at high altitudes and provide hydration tips for all trekkers. As we all know, a well-hydrated trekker is a happy trekker, irrespective of how cold the weather gets.

Do You Know? The research indicates that cold weather can decrease your thirst sensation upto 40%, resulting in an increase of dehydration risk among people. The fluid that the body loses in the form of sweat and from respiration can accumulate quickly in the cold air.

Why is Hydration Necessary at High- Altitude Trek?

It’s a no-brainer that at high altitudes, our bodies tend to work more than usual. As in such regions, the air gets thinner, and the breathing gets faster than normal. Every moment, every step in the Himalayas requires extra energy. Therefore, to keep the energy level up and consistent, keeping your body hydrated is essential. With the unpredictable nature of the weather, hydration is not just a healthy habit; it is a crucial element that supports the body's system of the trekker.

We are all aware of the fact that the more you linger in a cold temperature area, the less thirstier you will feel. In simple words, the cold air and less sweating trick your brain into thinking that you are hydrated.

But in reality, your body is still losing fluid whenever you are breathing rapidly, sweating while trekking, and breathing the mountain air, of course. With the lack of proper hydration, you will start experiencing dizziness and fatigue faster, headaches regularly, and your ability to adjust to different environments will start dropping gradually, resulting in all your adventurous treks getting converted into an uncomfortable struggle.

Hence, we stay adamant and keep telling all our trekkers that keeping their bodies hydrated is the best power move to ensure that they will remain safe and will be able to enjoy the trek to the fullest, feeling energetic.

Since water helps in keeping the body temperature in check, improves the oxygen circulation, helps in solving the digestion issue, and so on. Just so that you can enjoy the mountain atmosphere and surroundings with perfect health. As in high - altitude treks, every sip of water counts as it contributes to making the difference between just reaching the summit point and actually enjoying the journey and the view in reality.

Effect of Dehydration during the Winter Trek

Experiencing dehydration at high altitude is very common, but remind you all that having dehydration in the body can be dangerous, as the high altitude treks already pose so many challenges, and facing dehydration on top of that can result in degradation of your trekking experience.

Speaking of challenges, except for: facing a drop in the oxygen level and feeling cold. Let’s take a look at the issues that trekkers might face due to having dehydration in the body.

Risk of Acute Mountain Sickness (AMS) at high altitude

• ➜ Due to the lack of an adequate amount of water in trekkers, they might face difficulty in adjusting to the mountain environment effectively, resulting in the possibility of having any life-threatening condition.
• ➜ Sometimes, dehydration worsens the symptoms of the AMS, and the trekker might start experiencing Headache, Nausea, Dizziness, and Fatigue too.

Rapid Fatigue and Lack of Energy due to Dehydration

• ➜ As the water is less in the body, the volume of blood tends to decrease, resulting in facing the difficulty in transporting oxygen and nutrients properly throughout the body.
• ➜ Apart from that, the cramps in the muscles also increase as the body’s electrolytes get unbalanced, triggering the pain in the muscle, and the body muscles start getting tired faster, the duration of body recovery increases, and even short walks will start to make you feel exhausted.

The cognitive function of the body gets affected

• ➜ Due to dehydration, the cognitive function of the body is easily affected, resulting in trekkers making some poor judgments during their trek, facing poor concentration problems, a lack of judgment, and reacting more slowly than usual, resulting in compromising trekkers' ability to be alert and safe on the trek.
• ➜ Around 55-60% of our body is covered in water, and not having enough water in the human body makes it a perfect vessel to catch illness, resulting in the immune system getting weaker and the body facing digestive issues like constipation and upset stomach, too.

Now, as you all are aware of how dehydration affects our bodies in winters, let’s take a look at some challenges you might face while maintaining the hydration level during your trekking journey.

Challenges Trekkers Face While Maintaining Hydration Level In Winter Treks

Facing a hydration issue during each season is very frequent, but no other season faces this many issues while maintaining the hydration level as winter does. This season happens to pose the biggest challenge when it comes to maintaining the hydration level in any trekker's body.

The extreme cold temperature, high altitude regions, and the decrease in feeling thirsty nowadays all these factors play an important role in trekkers' thinking that drinking far less water than what the body actually requires is absolutely normal.

But apart from not feeling thirsty enough challenge, trekkers happens to face many other issues too as they try to maintain their hydration level before and even during the trek in the higher altitude region.

So, let's try to understand all the challenges a trekker possibly faces during their winter treks and figure out effective steps that trekkers can take to regulate their hydration effectively before and during their journey.

• Reduced Thirst Sensation - During cold weather, the body doesn’t really feel as thirsty as it does in summer. That’s what we all happen to believe in, but the truth? Well, the truth is that the requirement of water in our bodies actually never decreases.
  In fact, in winter, your brain just tricks you into believing that drinking more water is not necessary, and your body is completely hydrated. This illusion leads to you taking long gaps between water intake, gradually pushing the body towards dehydration.
• Response to Cold Exposure - Usually, in the high altitude regions, where the temperature usually remains much lower than the normal temperature, the human body happens to have its own mechanism to protect itself from getting cold. The body tries to keep itself warm by conserving heat by reducing the blood flow to the skin. But unfortunately, this act triggers the phenomenon in the body where the urine production increases, leading to the body losing the fluid faster than the trekker realises it.
• Water Sources Getting Cold or Frozen- In winter, due to extremely low temperatures in high-altitude regions, the water tends to get frozen easily. From water bottles to the lakes, or any other possible way that can be a potential source of water, gets frozen, leading to limited access to liquid water and discouraging the trekkers from drinking enough water that the human body requires in general.

These were some of the main challenges that every trekker generally faces while trekking in the high-altitude region, and after knowing these challenges, a trekker must prepare themselves in advance to fight these obstacles, completing their trek successfully. Hence, to enlighten you all about how you can prepare your body in advance. We have listed out some tips to stay hydrated before the beginning of your trek and during your trek too.

Pre-Trek Hydration Tips: Preparing the Body in Advance

Staying physically and mentally fit is very important for trekking, and while trekking, at times, a lot of trekkers face dehydration issues, but you must prevent yourself from getting dehydrated, as it can lead to serious health issues. Hence, you should start taking all the possible precautions before the trek and during the trek too to keep yourself safe and healthy enough to enjoy your trek to the fullest.

Now, without wasting any words further, let’s take a look at all the possible hydration tips you can follow before and during the trek.

S.no	Pre- Trek Hydrating Tips	During the Trek Hydrating Tips
1	Start increasing your water intake a few days before your trek begins. As it helps in keeping fluid stored in the body and adapts to cold weather conditions.	Gulping a large amount of water at once makes trekkers avoid taking it in more. Hence, it’s better to take a few sips of water every 20-30 minutes. In this way, the body will absorb water in a much better way, and the trekker’s body will also not feel overloaded while trekking in cold weather.
2	Make sure that you reduce your caffeine and alcohol, or any other substance quantity that dehydrates your body, before your trek. As it makes keeping the body hydrated very difficult.	Try to use a water bottle that has insulation in it to prevent the water from getting frozen. Apart from this, you can also put your bottle in an upside-down form or keep it in your backpack, where it will be close to your body.
3	Make sure that you are taking meals that consist of water in it in high amounts, as that will help in the overall hydration a lot.	Make sure that you keep monitoring your urine colour, as it is the most common way to figure out the hydration condition in your body.
4	Your body must keep getting water intake at regular intervals, and you must start making this your habit. In this way, you will be training your body to accept the water intake even when it is not necessary.	While packing for your trekking journey, make sure to pack some electrolytes. As they help the body gain some minerals and retain the fluid in the body, too.

Conclusion

While trekking and even in general, keeping your body hydrated should become a non-negotiable habit for everyone. Drinking water is the strongest ally of trekkers that helps them in keeping their body moving, gives you enough energy to think clearly and to be able to enjoy their trekking fully.

As cold weather reduces the thirst to drink water because of our body thinking it is already hydrated enough. It’s very important that all the trekkers must continue drinking water at every hour. So, not only will your body have a good amount of water intake, but it will also generate a habit within you to drink water regularly. In this way you will be able to prevent yourself from feeling any fatigue, headaches, or altitude-related discomfort.

Lastly, make sure to start increasing your water intake a few days before the beginning of your trek and keep taking other possible precautions as well.

Concluding, just always keep one simple hydration rule in your mind that - “Little and often water intake must be maintained, whenever it’s possible, just remains consistent throughout the day”.

Staying hydrated during winter is more of an effort than the instincts of the human body. When trekkers start paying attention to their hydration level, they start feeling stronger, warmer and more comfortable on their own while being on the trail.

FAQs

1. Why is keeping hydrated so essential during winter, even when our body doesn’t feel thirsty?

As the body faces a significant water loss even in winter through not so visible ways like sweating, breathing and so on. It leads to dehydration in the body. Therefore, consistent water intake is very important for the body in high altitude regions to prevent feeling any fatigue, blood getting thicker or getting any symptoms of AMS.

2. What is an Ideal water intake daily?

The ideal water intake to keep the body hydrated during winter is 3-4 litres of fluid regularly. Just make sure that instead of gulping it all down, keep taking sips throughout the day at proper gaps.

3. What are some main signs of having Dehydration in the body?

Some of the main signs of having dehydration are having dry mouth/lips, headaches, dizziness, fatigue, having dark yellow urine and so on.

4. How does hydration help in keeping you fit during a high-altitude trek?

Keeping hydrated on a high altitude trek helps the body a lot in adapting to the change in the environment, maintains the energy level of the body, regulates the cognitive function of the body and so on.