When something is going wrong in your body, there will be signs. They may be subtle, but they are visible in close observation. If you are a smoker, you may be worried about the smell of smoke emanating from your mouth or clothes. However, there are other signs that tell whether you smoke or not and these signs are difficult to get rid of!

Smoking is the harmful act of inhaling tobacco infused smoke and is a common activity all over the world. According to the Center of Disease Control and Prevention (CDC), over 480,000 deaths happen each year due to smoking or smoke inhalation. The organization explained that smoking causes harm to nearly all organs and quitting lowers the risk of early death and other smoking related diseases.

Like many other substances, there are clear tell-tale signs when someone is smoking. This is especially important for finding lung problems like Chronic obstructive pulmonary disease (COPD), which is a lung disease that makes it hard to breathe, sooner so people can get help.

Why Does Smoking Affect Your Physical Appearance?

Action on Smoking and Health (ASH) explains that tobacco smoke has more than 7,000 harmful chemicals like nicotine, carbon monoxide, and various metals like arsenic, cadmium, and lead, quickly reach your lungs and then travel through your blood to all your organs, including your skin. Smoking damages your skin's ability to heal because it increases an enzyme metalloproteinase (MMPs) that breaks down collagen. Collagen is what keeps your skin smooth and elastic. As you lose collagen, your skin sags. Squinting from the smoke and puckering your mouth when smoking also cause wrinkles around your eyes and mouth.

Smoking also reduces blood flow to your skin, which means it gets less oxygen and nutrients. All these things together lead to what doctors call a "smoker's face." Quitting smoking can help prevent or slow down these skin problems."

Visible Signs Of Smoking

Here are some visible signs of smoking in people, according to 2013, Lung India

Fingers and Nails

When people smoke, the tar and other chemicals in the smoke stick to their fingers and nails. This repeated contact causes a yellow stain that's hard to wash off. It's a very common sign that someone regularly handles cigarettes or biris.

Moustaches

Especially in older people with white moustaches, smoking causes a yellowing effect. This is most noticeable in the center of the moustache, where the smoke from the nose directly hits the hair. The consistent exposure to smoke colors the hair over time.

Lips

Heavy smokers often have a bluish-black tint to their lips. This discoloration happens because the chemicals in tobacco smoke affect the blood flow and the color of the skin on the lips. The constant exposure changes the lip's natural color.

Teeth

Smoking causes teeth to stain both inside and out. The outside of the teeth turns yellow from the tar, while the inside develops a brownish-black stain. This happens because the smoke seeps into the enamel and discolors the teeth over time.

Premature Wrinkling

Smoking makes the skin age faster. This leads to wrinkles like "crow's feet" around the eyes and "cobblestone wrinkles" on the neck. This happens because smoking reduces blood flow, limiting oxygen to the skin, and damages collagen, which keeps skin elastic.

Nodular Elastosis

This condition, also known as "Favre–Racouchot syndrome," causes blackheads and wrinkles, especially around the eyes and temples. It is made worse by both sun exposure and heavy smoking. The skin becomes discolored with visible nodules and wrinkles.

Facial Wrinkling and COPD

A study published in Thorax 2006 found a connection between wrinkles on the face and COPD, a lung disease. It's thought that smoking affects both the skin and lungs through similar processes. If doctors notice signs like "crow's feet" on a smoker's face, they might recommend tests for COPD. This early detection can help people get treatment sooner and improve their lung health.

Insulin resistance is a condition in which the body cannot effectively use insulin. Shockingly, this condition is now being linked to first-trimester miscarriages, especially in women with PCOS, with lab markers such as HbA1c and fasting insulin offering early clues. Therefore, it is essential for women to take charge of their health and maintain their blood sugar levels within the recommended range, as per Dr Sushruta Mokadam, Senior Consultant Obstetrician & Gynaecologist, Motherhood Hospital, Kharadi, Pune. The expert went on to talk about other aspects of the same, detailing just how first trimester miscarriages could be a consequence of ignoring high blood sugar or insulin resistance.

Why are miscarriages in the first trimester rising?

Currently, there is a surge in cases of miscarriages during the first trimester, which is raising concern among experts. This may be due to undiagnosed insulin resistance. Yes, that’s right—miscarriage is not only caused by infections, hormonal imbalance, or blood clotting disorders, but also by insulin resistance. Many women fail to pay attention to insulin resistance, which affects how the body processes sugar and plays a major role in causing hormonal imbalance. Women with Polycystic Ovary Syndrome (PCOS) are at a higher risk, as metabolic dysfunction can lead to miscarriage. Many women are experiencing repeated early pregnancy loss but are not screened for insulin resistance, leading to missed opportunities for early intervention.

How are miscarriages and insulin resistance linked?

Miscarriage and insulin resistance link: Insulin resistance occurs when the body’s cells do not respond properly to insulin, leading to higher blood sugar and insulin levels. This imbalance can impact ovulation and egg quality and interfere with the implantation of the embryo. In early pregnancy, it may affect placental development, increasing the risk of miscarriage in the first trimester. In women with PCOS, insulin resistance is commonly present, even in those who are not overweight.

The impact of insulin resistance on reproductive health

High insulin levels can lead to increased androgen (male hormone) production, further affecting reproductive health. This hormonal imbalance can make it difficult for a pregnancy to be sustained, especially in the early weeks, which may result in miscarriage. Lab tests such as HbA1c (which reflects average blood sugar levels over time) and fasting insulin levels can help identify at-risk women. Even subtle elevations in these markers, including those within the upper-normal range, can indicate underlying metabolic dysfunction that may increase the chances of miscarriage.

What to do?

Pregnant women should opt for regular screening, manage blood sugar levels, eat a balanced diet, and exercise daily before planning pregnancy. Even during pregnancy, they should stay in touch with an expert who can guide them throughout the process.

Blood pressure is one of the most important, yet overlooked, aspects of a healthy individual. Little do people realise that the force at which blood presses against the walls of the arteries can have a serious impact on long-term health—heart attack or stroke, for instance. Current guidelines from the American Heart Association state that adults should aim for a blood pressure reading of 130/80 millimetres of mercury (mm Hg). Some experts also say that this target is a little too aggressive for people who are prone to the side effects of blood pressure medication, such as falls and dizziness. But what would be the ideal blood pressure reading for older adults? Harvard Health experts have just answered this question.

Blood pressure reading in the 60s

According to recent studies, an intensive reduction in blood pressure in people aged over 60 is not only safe but is also associated with better outcomes than less aggressive treatment. According to a 2025 review, four randomised controlled trials were compared using two different strategies to control systolic blood pressure. The first aimed for a lower target, while the other strategy aimed for a higher systolic pressure. The trial included 2,600 people aged 75 years and older. Compared with a less aggressive strategy, there was a 39 per cent reduced risk of heart problems such as heart failure, heart attack, or stroke. There was also a 45 per cent lower risk of heart disease-related deaths.

Additionally, researchers noted no differences in the rates of adverse events such as fractures, low blood pressure, cognitive decline, or falls. Upon expanding the analysis, the same conclusions held true for people aged 70 years and above.

Rising hypertension risk

The risk of hypertension rises significantly with age. Among ageing adults, it is known as essential hypertension, as it helps deliver a sufficient amount of blood to the brain. With age, the blood vessels become less flexible and stiffer. Therefore, to reach the brain, an extra push is needed—as a result, systolic blood pressure can rise to as high as 150 mm Hg in people aged 65 years and above.

Doctors, however, are reconsidering their approach to hypertension treatment in older adults. The recent findings suggest that many older people should aim to keep their systolic pressure below 130 mm Hg. This may require a combination of lifestyle changes and medication.

Can one medication work?

According to experts, one medication may not be sufficient to achieve ideal blood pressure. A single drug usually works well to lower blood pressure by an average of 5 to 10 points. Using a lower dose of two different blood pressure medicines is more effective than maximising the dose of one drug. This approach is also less likely to result in side effects.

The relationship between chronic stress and liver health is a complex physiological loop driven largely by cortisol, the body’s primary stress hormone. While the liver is often viewed as a detox organ, it is highly responsive to hormonal signals, especially during prolonged stress. But at a time when competition is at its all-time peak in every aspect of life, be it work or school, it is a no-brainer that stress levels are peaking across age groups. That being said, Dr. Tushar Madake, Consultant, Department of Transplant Hepatology at Ruby Hall Clinic, Pune, spoke about the impact of high cortisol on the liver.

What is cortisol?

When stress becomes chronic, the adrenal glands continuously release cortisol. The liver, rich in glucocorticoid receptors, responds by shifting into a survival mode. In short-term situations, this helps by releasing glucose into the bloodstream for quick energy. However, when stress persists without physical activity, this constant signal disrupts normal metabolism.

The impact of high cortisol levels

One major effect is increased glucose production, where the liver generates sugar from non-carbohydrate sources. Over time, this leads to consistently high blood sugar and forces the pancreas to produce more insulin, eventually contributing to insulin resistance. At the same time, cortisol promotes the release of fatty acids into the bloodstream. The liver absorbs these fats but struggles to process and export them efficiently, leading to elevated triglycerides and unhealthy cholesterol levels.

How does stress affect the liver?

Stress also drives fat storage in the abdominal region and within the liver itself. This can result in fatty liver disease, even in individuals without poor dietary habits. As fat accumulates, inflammation follows. Liver immune cells release inflammatory substances, creating oxidative stress that damages liver cells. Additionally, when the liver is overloaded with managing excess glucose and fat, its ability to detoxify the body declines. Hormone balance, toxin clearance, and medication metabolism are all affected.

Stress can also impair bile flow, which is essential for fat digestion and toxin removal. Reduced bile movement further worsens internal imbalance. Ultimately, chronic stress keeps the liver in a constant state of overdrive, leading to long-term metabolic strain, inflammation, and gradual liver dysfunction.