Happiness is influenced by a complex interplay of various chemicals in our brain, particularly four key neurotransmitters, D.O.S.E or Dopamine, Oxytocin, Serotonin, and Endorphins. These chemicals, often referred to as "happiness chemicals," are responsible for creating feelings of joy, motivation, connection, and calm.

However, when there's a deficiency in any of these, it can significantly affect our mood, energy, and overall well-being. Let’s dive into what these four neurotransmitters are, how their deficiency impacts us, and how we can boost their levels naturally.

Dopamine: The Motivation and Reward Chemical

Dopamine is often called the "motivation molecule." It plays a major role in enabling motivation, learning, and the pleasure-reward system in the brain. When we accomplish something — whether it’s finishing a project, completing a workout, or achieving a goal — dopamine gives us that sense of satisfaction and determination to continue.

Deficiency Effects:

When dopamine levels are low, it can lead to procrastination, low self-esteem, lack of focus, and general fatigue. A person might feel anxious, hopeless, or experience mood swings because the brain isn’t getting the reward signals it needs.

Boosting Dopamine:

You can increase dopamine levels by setting and achieving small goals, exercising regularly, eating foods rich in L-Tyrosine (such as almonds, avocados, and eggs), and practicing mindfulness or meditation. Engaging in creative activities like writing or drawing also helps boost dopamine levels.

Oxytocin: The Bonding Chemical

Oxytocin is often referred to as the "love hormone" or "cuddle hormone" because it plays a major role in social bonding and trust. It’s released when we hug, touch, or engage in other forms of physical affection. Oxytocin fosters feelings of connection and emotional intimacy, making it essential for relationships, family bonding, and even team cooperation.

Deficiency Effects:

A lack of oxytocin can lead to feelings of loneliness, stress, anxiety, and difficulties in forming or maintaining relationships. Low oxytocin levels are associated with feelings of isolation and disconnection from others.

Boosting Oxytocin:

You can raise your oxytocin levels through physical touch, socialising, spending quality time with loved ones, and even engaging in activities like massage or listening to soothing music. Acts of kindness, such as helping others or volunteering, also help release oxytocin.

Serotonin: The Mood Stabiliser

Serotonin is responsible for feelings of well-being and contentment. It helps regulate mood, sleep, digestion, and even social behavior. People who have balanced serotonin levels often feel calm, confident, and emotionally stable. Serotonin is crucial in helping people feel valued and significant among their peers.

Deficiency Effects:

Low serotonin levels are linked to depression, low self-esteem, irritability, and mood swings. Individuals may feel overly sensitive to criticism, experience panic attacks, or struggle with social phobias when serotonin is deficient.

Boosting Serotonin:

You can boost serotonin by getting regular exercise, exposing yourself to sunlight, engaging in cold showers or massages, and practicing mindfulness. Simple activities like walking in nature, meditating, or doing yoga are also effective serotonin enhancers.

Endorphins: The Pain Reliever

Endorphins are the body’s natural painkillers. Released in response to stress, pain, or intense physical activity, they help alleviate discomfort and promote a sense of euphoria. Endorphins are what make you feel good after a workout or a hearty laugh, often referred to as the "runner's high."

Deficiency Effects:

Without enough endorphins, people may experience anxiety, depression, chronic pain, and insomnia. A deficiency in endorphins can make daily life feel overwhelming and physically draining.

Boosting Endorphins:

To boost endorphins, engage in laughter, exercise, and stretching activities. Eating spicy foods or dark chocolate can also stimulate endorphin production. Regular massage therapy and meditation are other ways to naturally elevate endorphin levels.

As oncologists, we often meet patients at some of the most difficult moments of their lives. Yet there are times where a patient's journey reminds of the extraordinary resilience that people can show while facing the challenges that cancer presents

I recently treated a 38-year-old woman whose story has stayed with me.

Having just welcomed her baby into the world, her demanding yet joyful routine revolved around feeding schedules and sleepless nights. It was during this period that she noticed a hard lump in her breast.

Breast Lumps Can Cause Aggressive Breast Cancer

A sonomammography revealed a suspicious BIRADS 4A lesion. A biopsy confirmed Triple-Negative Breast Cancer (TNBC), which is one of the more aggressive forms of breast cancer. It was classified as a Stage III disease after evaluation through PET-CT which showed involvement of the axillary lymph nodes. The tumor also had a high Ki-67 index, indicating that it was growing rapidly.

Facing Cancer While Caring for A Newborn

The untimely diagnosis found the mother facing difficult questions about cancer treatment, her future and her ability to care for her child. One of the immediate challenges was that she had to stop breastfeeding.

Under the guidance of her pediatrician, her baby was transitioned to bottle feeds. This can be an emotionally challenging process for mothers as the feeling of guilt tends to seep in when breastfeeding plans are disrupted by illness.

A Modern Treatment Approach

After detailed and prolonged discussions with the patient and her family, we initiated treatment with neoadjuvant immunotherapy using pembrolizumab in combination with chemotherapy. This approach has emerged as one of the more prominent advances in the treatment of high-risk Triple-Negative Breast Cancer, having significantly improved outcomes for many patients.

Motherhood is a physically and emotionally taxing experience but the patient showed incredible strength during her cancer therapy, driven by her child and the unwavering support of her family.

Following completion of neoadjuvant therapy, repeat PET-CT imaging showed a near-complete response. She subsequently underwent surgery, and the final pathology report revealed a pathological complete response, meaning no residual invasive cancer had been detected.

This was the desired outcome for the treating team as well as the patient. She later completed the remaining course of immunotherapy, bringing her total treatment duration to one year. Today, both mother and child are doing well.

Breast Cancer Can Occur During Pregnancy

This tremendous journey highlights an important message. The fact that breast cancer can occur during pregnancy and the postpartum period deserves wider attention. Any breast lump that persists or feels unusual should be evaluated by a healthcare professional, as early diagnosis remains one of the most important factors in achieving positive outcomes.

The process is reflective of the advances in cancer treatment that are changing the outlook for patients with aggressive cancers. These advances are done through the integration of immunotherapy into treatment protocols which is helping more patients achieve improved long-term outcomes. The mother’s story is a reminder that cancer and motherhood are not mutually exclusive journeys.

Her ability to navigate this path is due to her timely diagnosis, access to appropriate treatment, family support and personal resilience. What began as a frightening diagnosis soon after childbirth ultimately became a story of hope, courage and survival. This is a powerful reminder to every new mother who might discover an unusual breast lump, that listening to your body and seeking medical advice early can make all the difference.

Constipation is one of the most common digestive complaints affecting people of all ages. It is generally defined as having fewer than three bowel movements per week, passing hard stools, excessive straining, or a feeling of incomplete evacuation.

While occasional constipation is usually not a cause for concern and can often be managed through lifestyle changes, persistent or severe constipation may sometimes indicate an underlying health condition that requires medical attention.

Common Causes of Constipation

Several factors can contribute to constipation, including inadequate fiber intake, insufficient water consumption, lack of physical activity, stress, changes in routine, and certain medications. In many cases, improving dietary habits and maintaining an active lifestyle can help restore normal bowel function. However, when constipation becomes chronic or is accompanied by other symptoms, it should not be ignored.

Warning Signs

One of the most important warning signs is a sudden change in bowel habits, particularly in adults over the age of 50. Persistent constipation associated with unexplained weight loss, loss of appetite, fatigue, abdominal pain, bloating, or blood in the stool may indicate a more serious condition, such as colorectal cancer. Early detection is crucial, making timely medical evaluation essential.

What's Behind Chronic Constipation

Chronic constipation may also be linked to several medical disorders. Conditions such as hypothyroidism, diabetes, Parkinson’s disease, multiple sclerosis, and certain neurological disorders can affect the normal movement of the intestines. In some individuals, constipation may result from pelvic floor dysfunction, where the muscles involved in bowel movements do not coordinate properly.

Irritable Bowel Syndrome (IBS), particularly the constipation-predominant type, is another common cause of ongoing bowel difficulties. Inflammatory bowel diseases, intestinal narrowing, or bowel obstruction can also present with severe constipation and abdominal discomfort.

Many people rely on over-the-counter laxatives for relief. While these medications can be effective when used appropriately, long-term or excessive use without medical supervision may mask an underlying problem and can sometimes worsen bowel function over time.

How To Maintain Good Digestive Health

To maintain good digestive health, individuals should consume a fibre-rich diet that includes fruits, vegetables, whole grains, and legumes. Adequate hydration, regular exercise, and responding promptly to the urge to pass stools are equally important.

Constipation is often harmless, but persistent symptoms should never be dismissed. If constipation lasts for several weeks, becomes increasingly severe, or is associated with alarming symptoms such as bleeding, significant weight loss, or severe abdominal pain, seeking medical advice is essential. Recognizing these warning signs early can help identify serious health conditions and ensure timely treatment.

(By Dr. Pradeepta Kumar Sethy, Director Gastroenterology, Manipal Hospital EM Bypass & Mukundupur)

Yoga may offer benefits beyond flexibility and stress relief, with doctors from the All India Institute of Medical Sciences (AIIMS), New Delhi, ahead of International Yoga Day 2026, saying that studies have shown the ancient practice could help improve outcomes in conditions ranging from unexplained male infertility to autoimmune disorders such as rheumatoid arthritis and fibromyalgia.

This year marks the 12th International Day of Yoga, observed annually on June 21. The theme for this year, "Yoga for Healthy Ageing," highlights the practice's potential to enhance mobility, balance, flexibility, and mental well-being, helping people maintain health and independence at every stage of life.

Yoga And Unexplained Male Infertility

Dr. Rima Dada, Professor at the Laboratory for Molecular Reproduction and Genetics, Department of Anatomy, AIIMS Delhi, told HealthandMe that cases of unexplained male factor infertility have increased in recent decades. In many of these cases, standard sperm parameters appear normal, but sperm cells are affected by oxidative stress and DNA damage.

According to Dr. Rima, studies conducted in men with unexplained infertility found that regular yoga practice reduced oxidative stress, decreased sperm DNA damage, and normalized the expression of genes critical for early embryonic development. These benefits, however, generally require consistent practice for more than six months.

Also read:International Yoga Day 2026: 10 Desk Yoga Poses That Can Undo Hours of Sitting

Dr. Rima described yoga as an “art of living” that combines

• mindful asanas,
• relaxation techniques,
• pranayama,
• meditation,
• healthy nutrition,
• adequate sleep.

According to her, such lifestyle measures may improve sperm DNA quality, motility, and overall reproductive health while potentially reducing the burden of genetic and epigenetic disorders in future generations.

Yoga And Rheumatoid Arthritis

Dr. Rima also highlighted the role of yoga in rheumatoid arthritis, an autoimmune disease that typically affects small joints initially and may later involve larger joints as well as organs such as the lungs, heart, and brain.

She described yoga as an "art of living" that should be incorporated into daily life through mindful asanas, relaxation techniques, pranayama, meditation, a whole plant-based diet, and adequate sleep.

Read More: Trying to Quit Tobacco? Yoga Could Improve Your Chances, Suggests Study

She added that research has shown that yoga, including asanas, pranayama, and meditation, can help reduce inflammatory cytokines linked to swelling, pain, stiffness, and joint damage. Pranayama practices such as Anulom Vilom, Bhramari, and Ujjayi were highlighted as particularly beneficial.

For people living with rheumatoid arthritis, she recommended beginning with gentle loosening exercises under the supervision of a trained yoga therapist and avoiding strenuous postures during acute flare-ups. Pranayama and meditation, she said, may help reduce inflammation, improve emotional resilience, and support longer periods of remission.

Yoga As An Adjunct Therapy

Dr. Uma Kumar, Head of the Department of Rheumatology at AIIMS New Delhi, explained that autoimmune diseases occur when the immune system mistakenly attacks the body’s own tissues and organs.

Conditions such as rheumatoid arthritis, systemic lupus erythematosus, Sjogren’s syndrome, myositis, antiphospholipid antibody syndrome, and IgG4-related disease can significantly affect quality of life, often leading to pain, fatigue, depression, sleep disturbances, and reduced mobility.

“All these components are improved by yoga,” Dr. Kumar said.

However, she stressed that yoga should be viewed as an adjunct to medical treatment rather than a replacement. According to her, yoga may complement conventional therapies by improving sleep, flexibility, mental well-being, lifestyle habits, and overall quality of life.

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Yoga's Benefits For Fibromyalgia

Dr. Renu Bhatia, Additional Professor in the Department of Physiology at AIIMS Delhi, said supervised yoga therapy may help improve physical activity, sleep quality, muscle blood flow, pain levels, and flexibility in people with fibromyalgia.

The experts described fibromyalgia as a condition characterized by widespread pain despite normal laboratory findings and the absence of obvious inflammation.

Dr. Renu noted that studies have shown six weeks of supervised yoga intervention can reduce tender points while improving sensory symptoms, brain function, and neural excitability. However, she cautioned that yoga should be practiced under supervision, as excessive joint movement may aggravate symptoms in some patients.