Staying Hydrated in Brampton Even When It's Cold Outside

Most of us think about hydration on a sweltering July afternoon at a cricket match in Chinguacousy Park or after a long run in the summer sun. Few people think about it in February, when the car windshield is frosted and a hot drink feels more appealing than a cold glass of water. Yet mild dehydration is common in winter, and it can quietly contribute to headaches, fatigue, constipation, dry skin and difficulty concentrating.

Cold weather changes how the body signals thirst and how it loses fluid. Combine that with dry indoor heating, heavy layers, and busy days spent commuting and working, and it is easy to go hours without drinking much at all. This post looks at why winter hydration matters, who is most at risk, how to tell whether you are drinking enough, and simple habits that make it easier.

The pharmacists at Pharmasave WestBram, 100 Pertosa Drive, also field questions about how fluids interact with medications and health conditions, which we cover below.

Why thirst fades when temperatures drop

In cold conditions, blood vessels in the skin and limbs narrow to conserve heat. This shifts more blood toward the core, and the body may interpret that as having enough fluid. The result is a weaker thirst signal, even though fluid is still being lost. Studies on people exercising in the cold have found that thirst can be noticeably reduced compared with warm conditions.

At the same time, people tend to reach for water less in winter simply out of habit. A cold bottle of water does not sound appealing when you are already chilly, and many people rely on coffee or tea, which do contribute to fluid intake but may not be enough on their own if that is all you drink in a day.

Where winter fluid losses come from

Even without obvious sweating, the body loses water through several routes:

• Breathing. Cold air is dry. When you breathe it in, the body warms and humidifies it, and some of that moisture is lost when you exhale. That cloud of breath you see on a cold morning is water leaving your body.
• Sweat under layers. Heavy coats and sweaters can cause you to sweat during activity, like shovelling, carrying groceries or rushing to catch the Züm bus, without noticing because the sweat evaporates quickly in dry air.
• Indoor heating. Furnace-heated homes, offices and cars have low humidity, increasing moisture loss from the skin and airways.
• Increased urination. Cold exposure can cause the body to produce more urine, a response sometimes called cold-induced diuresis.
• Illness. Winter viruses bring fever, vomiting and diarrhea, all of which increase fluid needs.

Who should pay closer attention

Anyone can become dehydrated, but some people are more vulnerable:

• Older adults, whose thirst sensation naturally weakens with age and who may limit fluids to avoid frequent bathroom trips
• Young children, who rely on adults to offer drinks and lose fluid quickly when sick
• People with diabetes, since high blood sugar increases urination
• People taking certain medications, such as diuretics (“water pills”), some blood pressure medicines and laxatives
• Outdoor workers in construction, delivery, landscaping and snow removal
• People who are fasting for religious reasons, who need to plan their fluid intake carefully during eating hours
• Anyone recovering from a stomach illness

If you care for an older parent or grandparent, keep an eye on how much they are drinking through the winter. Confusion, dizziness or unusual tiredness in an older person can sometimes be linked to dehydration.

Signs you may not be drinking enough

Early signs of mild dehydration can be easy to dismiss:

• Darker yellow urine, or urinating less often than usual
• Thirst or a dry mouth
• Headache
• Tiredness or low energy
• Dry lips and skin
• Constipation
• Light-headedness when standing up

Urine colour is a simple day-to-day guide. Pale yellow generally suggests good hydration, while dark yellow or amber suggests you need more fluid. Note that some vitamins, particularly B vitamins, and certain medications can change urine colour.

More serious dehydration needs prompt medical attention. Seek care if someone has very little or no urine, extreme thirst, confusion, rapid heartbeat, fainting, or cannot keep fluids down, especially young children and older adults.

How much fluid is enough?

There is no single number that applies to everyone. Fluid needs depend on age, body size, activity, health conditions and medications. Fluid also comes from food: soups, stews, dal, fruit, vegetables, yogurt and milk all contribute.

Canada’s food guide encourages making water your drink of choice, choosing it over sugary drinks like pop, sweetened juices, energy drinks and sweetened specialty coffees. Plain milk and unsweetened fortified plant-based beverages can also be part of a healthy pattern.

A practical approach is to drink regularly throughout the day rather than all at once, and drink more when you are active, sick, or in dry, heated environments.

Some people have been told by their doctor to limit fluids, for example because of certain heart or kidney conditions. If that applies to you, follow your healthcare provider’s guidance rather than general recommendations, and ask your pharmacist if you have questions.

Practical habits for winter hydration

If cold water is unappealing in February, warm options count too:

• Start the day with a glass of warm water, perhaps with a slice of lemon or ginger.
• Keep an insulated bottle of warm water or herbal tea in your car or bag.
• Have a bowl of broth-based soup with lunch or dinner.
• Set a reminder on your phone if you tend to forget during busy workdays.
• Pair drinking with routines: a glass of water with each meal, after each bathroom break, or when you arrive at work.
• Keep a glass of water on your bedside table.

Caffeinated drinks such as coffee and chai do contribute to fluid intake for regular drinkers, but it is wise to balance them with water and to watch out for added sugar in sweetened versions. Alcohol increases fluid loss and is best limited.

Hydration and active living

If you exercise in winter, whether running on Brampton’s trails, playing indoor soccer or working out at the gym, plan your fluids. Drink before you start, bring a bottle along, and drink afterward. For most moderate workouts under about an hour, water is enough. Longer or very intense sessions may call for a sports drink, though many people who exercise casually do not need them.

Winter sports such as skating, skiing and snowboarding involve more exertion and sweat under layers than people expect. Pack a drink in your bag or locker.

Medications, health conditions and fluids

Several common medicines affect fluid balance. Diuretics increase urination. Some diabetes medicines, laxatives and lithium also have hydration-related considerations. When you are sick with vomiting, diarrhea or fever and cannot keep fluids down, some medicines may need to be temporarily paused or adjusted. This is sometimes called a “sick day” plan, and it should only be done on the advice of your pharmacist or prescriber.

If you take several medicines, ask your pharmacist whether any of them affect hydration and whether you should have a sick day plan. A medication review can help put this together; ask whether you are eligible. People with diabetes can also discuss sick day management through our diabetes support service.

Oral rehydration solutions are useful when recovering from vomiting or diarrhea, especially for children and older adults, because they replace salts along with water. The pharmacist can help you choose one and explain how to use it.

Fasting periods and long shifts

Brampton is home to many people who observe religious fasts at various times of the year, and to many who work long or overnight shifts in warehouses, health care, transportation and manufacturing. Both situations make regular drinking harder.

During a fast that restricts food and drink during daylight hours, it helps to spread fluids across the non-fasting hours rather than drinking a large amount at once, and to include water-rich foods such as fruit, yogurt and soups at the pre-dawn and evening meals. Salty and very sugary foods can increase thirst the next day. People with diabetes, kidney conditions or other chronic illnesses, and those taking regular medications, should speak with their doctor and pharmacist before fasting, since medicine timing may need to be adjusted.

For shift workers, keeping a refillable bottle at your workstation and drinking at each scheduled break builds a routine that does not depend on remembering. Night-shift workers sometimes rely heavily on energy drinks or coffee to stay alert, so balancing those with water is especially worthwhile.

Hydration and your skin

Dry winter skin is mostly about the skin barrier and the environment, but drinking enough fluid is still part of overall health. Pair good hydration with a regular moisturiser, lukewarm showers and a humidifier in the bedroom for the best results through the cold months.

Talk to Pharmasave WestBram about fluids and your medicines

Staying hydrated in winter is mostly about building small habits, but medications and health conditions can make it more complicated. If you want to know how your prescriptions affect fluid balance, or need a plan for sick days, ask us.

You can find Pharmasave WestBram at 100 Pertosa Drive, Brampton, ON L6X 0H9. Call (905) 454-5111, check our contact page for details, or request a consultation through the booking page.

This content is general information. Fluid needs vary from person to person, and those with heart, kidney or other health conditions should follow the advice of their own healthcare providers.