BharatNotes Note: This chapter was removed from the NCERT curriculum in the 2022 rationalization. Retained here as adolescent reproductive health, nutrition, and the demographic dividend are GS2 (health) and GS3 (population) topics.
Why this chapter matters for UPSC: Adolescence connects directly to India's demographic dividend, anaemia burden (NFHS-5 data), child marriage legislation, adolescent health programmes (RKSK), and population policy — all high-frequency GS3 and GS2 topics. The endocrine system and hormones also appear in GS3 science & technology questions.
PART 1 — Quick Reference Tables
Key Hormones in Adolescence
| Hormone | Secreted By | Function | Relevance |
|---|---|---|---|
| FSH (Follicle Stimulating Hormone) | Pituitary gland | Stimulates gonads (testes/ovaries) | Master signal for puberty |
| LH (Luteinising Hormone) | Pituitary gland | Triggers ovulation; stimulates testosterone | Menstrual cycle control |
| Testosterone | Testes | Voice deepening, facial hair, muscle growth, sperm production | Male secondary sexual characters |
| Estrogen | Ovaries | Breast development, uterine lining growth | Female secondary sexual characters |
| Progesterone | Ovaries (corpus luteum) | Maintains uterine lining; prepares for pregnancy | Menstrual cycle; contraception |
| Thyroxine | Thyroid gland | Growth, metabolism, energy regulation | Iodine deficiency → goitre |
| Adrenaline | Adrenal glands | Fight-or-flight stress response | Stress physiology |
| Insulin | Pancreas | Blood glucose regulation | Diabetes — major public health issue |
Adolescent Health Indicators — India (NFHS-5, 2019-21)
| Indicator | National Figure | Worst Performing States | Best Performing States |
|---|---|---|---|
| Women 20-24 married before age 18 | 23.3% | West Bengal (41.6%), Bihar (40.8%) | Himachal Pradesh (7.1%), Goa (7.3%) |
| Anaemia in women aged 15-49 | 57.0% | Gujarat (65.1%), Jharkhand (65.0%) | Kerala (36.4%), Goa (39.6%) |
| Anaemia in children under 5 | 67.1% | Jharkhand (69.7%), Chhattisgarh (66.6%) | Kerala (39.4%) |
| Adolescent birth rate (15-19 yrs) | 17 per 1000 | Bihar, Rajasthan | Tamil Nadu, Kerala |
Major Adolescent Health Programmes
| Programme | Launched | Focus | Key Feature |
|---|---|---|---|
| RKSK (Rashtriya Kishor Swasthya Karyakram) | 2014 | Comprehensive adolescent health (10-19 yrs) | AFHCs; peer educators; 6 strategic areas |
| SABLA (Kishori Shakti Yojana + RGSEAG merged) | 2010 | Adolescent girls' nutrition and empowerment | Convergence under ICDS |
| POSHAN Abhiyaan | 2018 | Reduce stunting, wasting, anaemia, low birth weight | Mission mode; real-time monitoring |
| PC&PNDT Act | 1994 | Prohibit sex-selective abortion and sex determination | Bans prenatal sex determination |
| Prohibition of Child Marriage Act | 2006 | Minimum marriage age: girls 18, boys 21 | Proposed increase to 21 for girls (pending) |
PART 2 — Detailed Notes
Adolescence and Puberty
Adolescence is the transitional period from childhood to adulthood, broadly spanning ages 11–19 years. It is characterized by:
- Rapid physical growth (height, weight, body composition)
- Development of secondary sexual characteristics (controlled by sex hormones)
- Emotional and psychological changes (identity formation, peer influence)
- Onset of reproductive capacity
Pituitary Gland: Located at the base of the brain; called the "master gland" because it controls other endocrine glands via hormones (FSH, LH, growth hormone, TSH, ACTH). The pituitary's signals to the gonads trigger puberty. Pituitary tumors can cause precocious (early) or delayed puberty — a clinical condition tested in GS3 medical science questions.
The Menstrual Cycle
The menstrual cycle is approximately 28 days and is the hallmark of female reproductive maturity:
- Days 1–5 (Menstruation): Uterine lining (endometrium) is shed — this is the menstrual flow; low estrogen and progesterone
- Days 6–13 (Follicular phase): Estrogen rises; a follicle matures in the ovary; uterine lining rebuilds
- Day 14 (Ovulation): LH surge triggers release of the egg (ovum) from the ovary
- Days 15–28 (Luteal phase): Progesterone dominates; if fertilization does not occur, hormone levels drop → menstruation begins again
Menarche = First menstruation (onset of puberty in girls). Menopause = Permanent cessation of menstruation (typically age 45–55 years), marking end of reproductive life. Early menopause (<40 years) is premature ovarian insufficiency — a health concern.
Nutrition for Adolescents
Adolescence is a critical window for nutritional investment — deficiencies at this stage have lifelong consequences:
- Iron: Critical especially for girls (compensate for menstrual blood loss); iron-deficiency anaemia is India's largest micronutrient problem
- Calcium: Peak bone mass is achieved by age 30; inadequate calcium during adolescence → osteoporosis in later life
- Iodine: Needed for thyroxine production; deficiency → goitre, cretinism; Universal Salt Iodisation (USI) is India's main intervention
- Protein: Required for muscle development and growth velocity during puberty
UPSC GS3 — India's Anaemia Crisis: NFHS-5 (2019-21) shows 57% of women aged 15-49 are anaemic — a persistent public health failure. India has the highest absolute number of anaemic women globally. Government response:
- POSHAN Abhiyaan (National Nutrition Mission, 2018) / Mission POSHAN 2.0: Mission-mode programme targeting stunting, wasting, anaemia, and low birth weight. Uses real-time monitoring via Poshan Tracker app. [Additional] Budget: ₹20,263 crore (FY2024-25) under Mission POSHAN 2.0.
- Anaemia Mukt Bharat (2018): Sub-strategy within POSHAN; 6×6×6 approach: 6 beneficiary groups (children 6–59 months, 5–9 years, 10–19 years adolescents, pregnant women, lactating mothers, women of reproductive age 15–49); 6 interventions (prophylactic IFA, deworming, delayed cord clamping, fortified food, dietary diversification, point-of-care testing); 6 institutional mechanisms. Target: reduce anaemia prevalence by 3 percentage points per year. [Additional] Budget: ₹805.91 crore (FY2024-25).
- Mid-Day Meal (PM Poshan): Provides iron-fortified meals to school children; reduces school-based anaemia.
- Fortification: FSSAI mandating rice fortification (iron, folic acid, B12) for PDS supply — [Additional] completed across ALL central government schemes by March 2024 (FSSAI standard: 1 mg iron/kg fortified rice minimum).
Adolescent Reproductive Health
UPSC GS2/GS3 — RKSK (Rashtriya Kishor Swasthya Karyakram, 2014): India's national adolescent health programme covers the 10-19 age group (253 million adolescents). Its six strategic intervention areas are:
- Nutrition
- Sexual and Reproductive Health (SRH)
- Non-communicable diseases (NCDs)
- Mental health
- Substance misuse
- Violence and injuries
Adolescent Friendly Health Clinics (AFHCs): One per block — provide confidential, adolescent-sensitive health services. Peer educators (trained adolescents) are the community backbone.
Child Marriage: NFHS-5: 23.3% women aged 20-24 were married before 18 — above the global average. Child Marriages are voidable (not automatically void) under the Prohibition of Child Marriage Act 2006. The Child Marriage (Prohibition) Amendment Bill 2021 proposes raising the minimum age of marriage for women from 18 to 21 years (parity with men) — remained pending as of 2025.
PC&PNDT Act 1994 (Pre-Conception and Pre-Natal Diagnostic Techniques Act): Prohibits sex determination before or after conception for sex-selective purposes. Sex ratio at birth per NFHS-5 is 929 females per 1000 males (improvement from 918 in NFHS-4). Beti Bachao Beti Padhao scheme (2015) targets states with skewed sex ratio.
India's Demographic Dividend
UPSC GS3 — Demographic Dividend: India's demographic profile as of 2024-25:
- Median age: approximately 28 years (compared to China ~39, Japan ~48)
- 65% of population in the 15-59 working-age bracket (UNFPA estimates)
- Total Fertility Rate (TFR): 2.0 (NFHS-5) — at replacement level nationally; below replacement in 31 states/UTs
The Dividend Window: Approximately 2020–2040, when the dependency ratio (dependents per working-age person) is at its lowest. East Asian economies (South Korea, Taiwan) achieved their economic miracles by capitalising on similar windows.
Conditions for realising the dividend:
- Education quality — NEP 2020, PM SHRI schools, higher enrolment
- Skills development — PMKVY (Pradhan Mantri Kaushal Vikas Yojana), Skill India Mission
- Health — Ayushman Bharat (PM-JAY), RKSK, anaemia reduction
- Employment generation — PLI schemes, Make in India, MSME growth
- Female labour force participation — currently ~24% (low by global standards)
Risk of a Demographic Disaster: If the young population is unhealthy, unskilled, or unemployed, India will face a demographic burden rather than a dividend. Anaemia, child marriage, and adolescent pregnancy directly reduce the productivity of tomorrow's workforce.
[Additional] 7a. National Menstrual Hygiene Policy 2024 — From Subsidy to Fundamental Right
The chapter covers RKSK and anaemia interventions but misses India's landmark National Menstrual Hygiene Policy 2024 -- a direct upgrade from subsidy-era schemes to a rights-based framework, driven by Supreme Court intervention.
[Additional] Menstrual Hygiene Policy for School-Going Girls 2024 -- GS2 (Health / Social Justice):
Background: India's earlier intervention -- the Menstrual Hygiene Scheme (MHS, 2011) under NHM -- provided subsidised sanitary pads (at Rs 6/pack) via ASHA workers to adolescent girls in rural areas. While it increased awareness, access remained patchy, especially for school-going girls.
National Menstrual Hygiene Policy 2024:
- Approved: November 2, 2024 by the Ministry of Health and Family Welfare (MoHFW)
- Trigger: Supreme Court PIL (filed by advocate Jaya Thakur, heard since 2023) directing the Centre to frame a comprehensive policy
- Key provisions:
- Free oxo-biodegradable sanitary products for girls in Classes 6-12 in all government and government-aided schools
- Schools must provide functional girls' toilets with covered disposal bins and soap for hand hygiene
- Menstrual hygiene integrated into the health curriculum and school health programmes
- Post-approval: SC asked the Centre for a concrete action plan to implement the policy (Live Law, 2025), indicating ongoing judicial oversight
- Constitutional framing: Supreme Court has declared menstrual health a fundamental right under Article 21 (Right to Life and Personal Dignity) -- a significant jurisprudential development for GS2 (Polity / Rights)
Why this matters for UPSC:
- Scheme-to-policy upgrades driven by judicial intervention are a classic GS2 governance question
- The "fundamental right" framing connects menstrual health to Articles 14 and 21 -- constitutional rights-based approach to health
- Contrast with RKSK (programme-level) and MHS 2011 (subsidy-level) -- the 2024 policy represents the third and highest tier: rights-level entitlement
- MHM (Menstrual Health Management) data: Only ~36% of women in India use hygienic methods of menstrual protection (NFHS-5 2019-21); gap is larger in rural and tribal areas
[Additional] 7b. Adolescent-Onset Non-Communicable Diseases — India's Emerging Double Burden
The chapter's RKSK section names NCDs (non-communicable diseases) as one of six strategic areas but gives no data on the growing NCD burden among adolescents and young adults -- a key GS3 (Health) gap.
[Additional] Rising NCDs Among India's Youth -- GS3 (Public Health):
India faces a double burden of disease -- traditional infectious diseases (malaria, TB, diarrhoeal diseases) coexisting with rapidly rising NCDs (diabetes, hypertension, obesity, cardiovascular disease). Historically seen as adult diseases, NCDs are now appearing at younger ages.
Youth-onset Type 2 Diabetes:
- India has a disproportionately high burden of early-onset T2DM -- Type 2 diabetes (lifestyle/metabolic, not the insulin-dependent Type 1) is increasing among those in their 20s and 30s, and is now detected even in the 10-19 age cohort
- ICMR Youth Diabetes Registry (ICMR-YDR): India's national registry for youth-onset diabetes; enrolled 18,000+ patients across multiple centres; provides nationally representative data on youth diabetes epidemiology, complications, and treatment outcomes
- STRiDE-I study (Secular TRends in DiabEtes, 2024): Documents rising T2DM prevalence among 20-39 year olds in urban and rural South India
- RSSDI Consensus Guidelines 2025 on nutrition management of diabetes in children, adolescents, and young adults -- supported by ICMR-National Institute of Nutrition (NIN) -- the first consensus framework for this age group
Why Indian youth are at higher risk:
- South Asian phenotype: Indians have higher percentage body fat at the same BMI as Europeans; develop insulin resistance at lower body weight -- also called "thin-fat Indian" (described by C.S. Yajnik)
- Rapid urbanisation: Dietary shift (ultra-processed foods, refined carbohydrates, sugary drinks) + sedentary lifestyle; often combined with prenatal undernutrition (intergenerational risk)
- Gestational diabetes: Mothers with gestational diabetes (GDM) have higher-risk offspring; India has among the world's highest GDM prevalence (~14-17%)
UPSC relevance:
- NCD burden among youth directly threatens the Demographic Dividend -- an unhealthy young workforce cannot drive economic growth
- RKSK's 3rd strategic area (NCDs) targets this; but no dedicated GoI adolescent-diabetes programme exists yet -- a policy gap
- The "thin-fat Indian" paradox (high metabolic risk at low BMI) is a frequently cited public health research concept in UPSC S&T questions
Exam Strategy
Prelims traps:
- RKSK covers 10-19 year olds (adolescents) — not 0-6 (ICDS) or 6-14 (Mid-Day Meal)
- NFHS-5 anaemia in women aged 15-49 is 57% — do not confuse with the children under 5 figure (67.1%)
- TFR of 2.0 (NFHS-5) is at replacement level — below 2.1 means population will eventually stabilize/decline without migration
- India's sex ratio at birth is 929 females per 1000 males (NFHS-5) — the overall sex ratio (all ages) is different (~940)
- POSHAN Abhiyaan (2018) is the umbrella programme; Anaemia Mukt Bharat is a sub-strategy within it
- PC&PNDT Act = Pre-Conception and Pre-Natal Diagnostic Techniques Act — covers both pre-conception sex selection and prenatal sex determination
Practice Questions
Prelims:
With reference to NFHS-5 (2019-21) data on India, which of the following is correct?
(a) Anaemia prevalence in women aged 15-49 has reduced below 40%
(b) Child marriages (below 18) have been completely eliminated
(c) More than half of women aged 15-49 are anaemic
(d) Total Fertility Rate is above 2.5 nationally"RKSK" launched in 2014 focuses on which age group?
(a) 0 to 6 years
(b) 6 to 14 years
(c) 10 to 19 years
(d) 15 to 25 years
Mains:
What is the "demographic dividend"? Examine the conditions necessary for India to fully realise its demographic dividend and the threats that could turn it into a demographic burden. (CSE Mains 2021, GS Paper 3, 15 marks)
Critically assess India's progress in tackling adolescent anaemia. What structural reforms are needed beyond supplementation to address this persistent problem? (CSE Mains 2023, GS Paper 3, 10 marks)
