astronomy

Suresh Rattan

Suresh Rattan is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Suresh Rattan rather than just read about it. In short: Suresh Rattan (full name: Suresh Inder Singh Rattan; born in 1955 in Amritsar, India) is a biogerontologist – a researcher in the field of biology of ageing, biogerontology. In addition to his professional research work on the biology of ageing, he is also very much interested and involved in the public communication of science and he likes to undertake explorations in the Indian classical music and semi-classical m…

Key takeaways

Suresh Rattan belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Suresh Rattan to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Suresh Rattan from memory before moving on to harder problems.

Reference excerpt

Suresh Rattan (full name: Suresh Inder Singh Rattan; born in 1955 in Amritsar, India) is a biogerontologist – a researcher in the field of biology of ageing, biogerontology. In addition to his professional research work on the biology of ageing, he is also very much interested and involved in the public communication of science and he likes to undertake explorations in the Indian classical music and semi-classical music by playing Tabla – the North Indian drums, as evident from music CDs "State of the Art: Small Town People" by Harry Jokumsen and other artists (2008), and "The Fall and the Rise of a Woman" by Pearl (2014) in which he plays Tabla under his artistic name Shashi Maharaj.

Academic background Suresh Rattan has been heading, since its inception in 1984, the Laboratory of Cellular Ageing at the Department of Molecular Biology and Genetics at the Aarhus University in Denmark, where he has become Emeritus since 2020. He was introduced to the field of ageing by Professor Suraj P. Sharma at the Guru Nanak Dev University (GNDU), Amritsar, India, during his BSc and MSc studies (1973–1977), followed by MPhil studies on the regenerative capacity of Hydra, under the guidance of Professor Sivatosh Mookerjee, at the School of Life Sciences, Jawaharlal Nehru University (JNU), New Delhi, India (1977–1979). Suresh Rattan earned his PhD in 1982 from the National Institute for Medical Research, Mill Hill, London, UK, based on his research project testing the error theory of cellular ageing, under the supervision of Dr. Robin Holliday FRS, and Dr. Ian Buchanan. He also earned the degree of Doctor of Science (DSc) in 1995, from the Faculty of Natural Sciences, University of Aarhus, Denmark, based on his post-PhD research work on the molecular biology of human cellular ageing. He is also the recipient of an Honorary Doctorate from the Russian Academy of Medical Sciences for his "...fruitful research and training in the field of biology of ageing, as well as his outstanding contribution to dissemination of scientific knowledge in basic gerontology...". He has been awarded a Visiting Professorship at the Faculty of Science, Palacky University in Olomouc, Czech Republic (2012–2016). The British Society for Research on Ageing (BSRA) has awarded their prestigious Lord Cohen Medal to Suresh Rattan for his continuing contributions to gerontology. He was unanimously elected as the President/Chair of the Biological Section of the European Region of the International Association of Gerontology and Geriatrics (IAGG-ER) for the periods 2011–2015, 2015 to 2019, and again for the period 2019–2023. He was also given the Outstanding Career Achievement Award - 2017, by the International Dose Response Society, USA Suresh Rattan has published over 300 research and review articles and about 20 books on the biology of ageing, including those for school children and general public. He is the founding Editor-in-Chief of Biogerontology, a leading peer reviewed journal in the field of ageing. His name has been included in Marquis Who's Who in the World (from 1993); Marquis Who's Who in Medicine and Healthcare (from 1998); and International Directory of Distinguished Leadership (from 1998). He was a member of the World Economic Forum's Global Agenda Council on Gerontology (2008–2009).

Important contributions Suresh Rattan's major intellectual contribution in gerontology is the formulation of the concepts of essential lifespan and virtual gerontogenes regarding the nature of genes involved in ageing that real gerontogenes do not exist. Additionally, in the area of ageing modulation, Suresh Rattan is credited with the sole inventorship for discovering the anti-ageing effects of kinetin and zeatin in human skin cells; and these compounds are being used in several skin-care cosmetics throughout the world, for example Valeant product Kinerase. His areas of expertise include ageing, anti-ageing and healthy ageing of human cells, specially fibroblasts, keratinocytes, osteoblasts, and bone marrow stem cells. His current research focuses on the beneficial effects of mild stress, Hormesis, and discovering hormetins (a new category of natural and synthetic compounds which bring about their beneficial effects through hormesis) for slowing down ageing and improving the quality of life in old age. The first skincare product to come out of the theory of hormesis is the Vaxin for Youth from Givenchy. He has also put forward the terms for the science and study of hormesis, and "hormetin" for any condition that can bring about hormesis "hormetics".

Books Suresh Rattan has written/edited/co-edited the following books on ageing in English, Punjabi and Danish:

… excerpt ends here. Continue reading the full article.

Illustrations

Worked examples

Example 1 — a first encounter with Suresh Rattan

Start with the simplest possible case. Write down what Suresh Rattan claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Suresh Rattan before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Suresh Rattan ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Suresh Rattan

In research: Suresh Rattan appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Suresh Rattan in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Suresh Rattan is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1955 births, 20th-century Indian scientists, Aarhus University, so understanding it makes those chapters shorter.
In everyday life: Look for Suresh Rattan outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Suresh Rattan in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Suresh Rattan means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Suresh Rattan out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Suresh Rattan in simple terms?

Why does Suresh Rattan matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Suresh Rattan?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Suresh Rattan.