What Causes the Common Cold?

Ah-choo! Ah-choo! I guess I caught a cold!

Ever noticed how a seemingly innocent sneeze can signal the start of unwelcome episodes of sniffles and sneezes? As we navigate our way through the hustle and bustle of daily life, there’s one persistent foe that always seems to find its way into our plans – the common cold.

In cold and flu season, patient visits increase by about 12.5% due to upper respiratory infections.

Have you ever wondered why, despite all your wellness efforts, the common cold manages to sneak into your life at the most inconvenient times?

Get set to uncover the reasons behind the x`common cold and explore simple, natural remedies to keep those sniffles at bay!

What is the common cold?

Do you know what catching a cold means?

To get a grip on the common cold, let’s begin with its definition. The common cold is a short-term viral infection that affects the upper respiratory tract encompassing the nose, sinuses, pharynx, and larynx. It's commonly known as an upper respiratory tract infection (URI).

The incidence of the common cold decreases with age. Here are some facts on an annual basis:

• Children under two years experience approximately six incidences of infections.
• Adults experience two to three incidences of cold.
• Older people typically face about one incidence of cold.

What causes the common cold?

Viruses are the primary mode of transmission of the common cold and they spread easily.

When someone with a cold cough, sneezes, or talks, tiny droplets get into the air, carrying those pesky viruses. If you touch something with the virus on it and then touch your face, especially your nose, mouth, or eyes, you might catch a cold.

Which pathogen causes the common cold?

Do you know over 200 viruses can cause the common cold? But Rhinovirus takes the lead, accounting for 10 to 40% of colds.

With more than 100 types, Rhinoviruses are the major contributors to cold in both kids and adults, causing at least 50% of adult cases. While most rhinovirus infections are mild, they can pose a serious risk, especially for individuals with weakened immune systems, asthma, or other underlying medical conditions.

Other viruses that lead to the common cold are :

• Human coronaviruses (account for 10-15% of cold)
• Influenza virus (accounts for 5-15% of cold)
• Others: Respiratory syncytial virus, Human metapneumovirus, Parainfluenza viruses, Adenoviruses, Echoviruses, and Coxsackieviruses A and B.

Risk factors for common cold

Now, who is prone to catching a cold? The truth is that cold can strike individuals of any age or background. Nevertheless, various factors can heighten your risk of catching a cold, including:

• Close contact: Being near someone with a cold increases URI risk.
• Public exposure: Public places raise the likelihood of URI transmission.
• Stress impact: Stress is a recognized risk factor for catching a cold.
• Smoking: Smoking heightens URI risk for both the smoker and those nearby.
• Gender disparity: Women are nearly 2X as likely to catch a cold, especially when the kids are sick.
• Female vulnerability: Females during reproductive years face higher URI risks.
• Sleep duration: Sleeping less than seven hours increases the risk of catching a cold by three times.
• Seasonal variation: Cold infections peak in winter and rainy seasons with variable rates.

What are the signs and symptoms of common cold?

Let’s explore the signs and symptoms of the common cold.

They include:

Local symptoms:

Sneezing, runny nose, sore throat, nasal congestion, cough

Systemic symptoms:

Fever (common in children and rare or mild in adults), muscle aches and pain, headache, tiredness, and mood changes

A span of up to two weeks is the usual contagious period for the common cold. When you catch a cold, the symptoms usually start slowly and stick around for about a week. Sometimes, a runny or stuffy nose and cough can last for up to 10 to 14 days.

It’s important to know that everyone’s experience can be different. Some people might have a tougher time with a cold than others. The symptoms in kids are similar to adults, but they might last a bit longer. Kids might also show signs like being cranky, fussy, or having trouble sleeping.

How is the common cold diagnosed?

Many people tend to self-diagnose and treat the common cold on their own. Healthcare providers look for symptoms like runny or stuffy nose, sneezing, coughing, and a sore throat to make an assessment.

You usually don’t need lab tests for the common cold, but if some complications or symptoms persist for a longer time, additional tests may be considered.

How is the common cold treated?

Now that we’ve covered what the common cold is and the factors that can make it worse, let’s dive into how to treat it. Although there’s no cure, there are plenty of user-friendly treatments that can ease symptoms and speed up recovery.

1. Rest and hydration: During a cold, make sure you get enough sleep to assist your body fight against infections. Up your fluid intake by consuming lots of water and herbal teas that contain ginger or honey to keep hydrated and alleviate sore throat.

2. Gargling: Research indicates that gargling with warm water can reduce the risk of URI by 30%. To gargle effectively, use 20 mL of warm water for 15 seconds, repeating three times, and repeat it three times a day. This simple practice helps soothe a sore throat and decrease inflammation.

3. Humidifier use: Place a humidifier in your room to add moisture to the air. This eases nasal congestion and relieves discomfort in your throat contributing to a more comfortable recovery.

4. Nasal saline drops and sprays: Use saline solutions to moisturize nasal passages and relieve congestion. Inhaled ipratropium bromide has shown promise in improving cold symptoms, especially a runny nose. 
5. Hot steam inhalation: Incorporate this in your routine, inhale steam from a bowl of hot water to get relief from nasal congestion and to calm irritated airways. 
6. Supplements: Did you know? Zinc is effective in preventing colds in children, with research indicating a reduction in the number of cold incidences per year. Supplements with vitamin C prove beneficial for individuals under physical stress, and studies suggest they contribute to reducing the duration of the cold.

7. Over-the-counter (OTC) medications: You'll find plenty of OTC products to tackle a common cold but remember to stick to the suggested doses. Taking too much might lead to unwanted side effects. 
Some of the OTC medicines against colds include decongestants, antihistamines (monotherapy or combination therapy), and cough suppressants

Can the common cold be

Despite the common cold being a frequent guest in our lives, it's essential to note that there's no common cold vaccine available.

Taking proactive steps is the key, so here are some easy-to-follow hygiene tips to incorporate into your daily routine to keep the cold at bay.

• Wash your hands frequently when in public.
• Avoid touching your face with unwashed hands.
• Cover your mouth when coughing/sneezing.
• Rest at home if you have a cold.
• Avoid handshakes/hugs when you are sick.
• Disinfect high-touch surfaces regularly.

Natural remedies for cold

Time-tested natural remedies and homeopathic preparations have been cherished for generations, often recognized as traditional solutions handed down from our grandparents.

Here, we present a selection of these friendly and accessible approaches to help alleviate symptoms and address the common cold.

• Ginger tea relieves congestion during a cold.
• Saltwater gargle provides relief when suffering from a sore throat.
• Echinacea and ginseng play a role in preventing colds.
• Adults find relief from sore throat with honey mixed with lemon in water.
• Eucalyptus oil in hot water is effective for steam inhalation.
• A single night-time dose of honey reduces cough and improves sleep in children over 12 months.

Dietary dos and don’ts

Managing a cold? Check out what foods to avoid for better relief.

Foods to avoid:

• Dairy products: May increase mucus production
• Sugary foods: Can weaken the immune system
• Fried and processed foods: These may be harder to digest.
• Citrus fruits: They may irritate the sore throat in some individuals

Foods to consume:

• Broth-based soups: Help with hydration and nutrient intake
• Citrus fruits (for some): High in vitamin C, beneficial for the immune system
• Other options: Ginger, garlic, and honey.

Always consider personal sensitivities and consult with a healthcare professional for specific dietary advice.

Conclusion

Dealing with cold and bouts of sneezing and coughing can feel burdensome and tiring. However, understanding what causes the common cold, its origin, causes, and symptoms allows us to tackle it effectively. 
While there’s no miraculous cure, adopting simple and user-friendly practices such as rest, hydration, and easy remedies like ginger tea and saltwater gargles can make a significant impact.

Remember, prevention is the key. Regular handwashing, avoiding handshakes when unwell, and keeping high-touch surfaces clean are effective preemptive measures.

Embrace these natural remedies and dietary suggestions to bid farewell to that persistent cold and to make your recovery journey a bit more comfortable. Be well.