Making Time for Science IELTS Reading: A Comprehensive Guide

The IELTS Reading test requires candidates to possess not only a rich vocabulary but also strong reading comprehension and analytical skills. “Making time for science” is a quintessential reading passage centered on the topics of chronobiology and circadian rhythms, explaining how our internal “body clock” governs the activities of flora and fauna. Notably, the article offers practical insights into applying these biological rhythms to our daily lives—from identifying the “golden hour” to wake up, fueling up in the morning, and taking vitamins, to the ideal time to stop consuming caffeine to optimize health and sleep quality.

The detailed article below from ECE Language Center provides you with everything you need to know about this passage, including the original text, vocabulary and grammar analysis, a full translation, and an explanation of the answers.

Reading Passage & Questions

Making time for science

Chronobiology might sound a little futuristic – like something from a science fiction novel, perhaps – but it’s actually a field of study that concerns one of the oldest processes life on this planet has ever known: short-term rhythms of time and their effect on flora and fauna.

This can take many forms. Marine life, for example, is influenced by tidal patterns. Animals tend to be active or inactive depending on the position of the sun or moon. Numerous creatures, humans included, are largely diurnal – that is, they like to come out during the hours of sunlight. Nocturnal animals, such as bats and possums, prefer to forage by night. A third group are known as crepuscular: they thrive in the lowlight of dawn and dusk and remain inactive at other hours.

When it comes to humans, chronobiologists are interested in what is known as the circadian rhythm. This is the complete cycle our bodies are naturally geared to undergo within the passage of a twenty-four hour day. Aside from sleeping at night and waking during the day, each cycle involves many other factors such as changes in blood pressure and body temperature. Not everyone has an identical circadian rhythm. ‘Night people’, for example, often describe how they find it very hard to operate during the morning, but become alert and focused by evening. This is a benign variation within circadian rhythms known as a chronotype.

Scientists have limited abilities to create durable modifications of chronobiological demands. Recent therapeutic developments for humans such as artificial light machines and melatonin administration can reset our circadian rhythms, for example, but our bodies can tell the difference and health suffers when we breach these natural rhythms for extended periods of time. Plants appear no more malleable in this respect; studies demonstrate that vegetables grown in season and ripened on the tree are far higher in essential nutrients than those grown in greenhouses and ripened by laser.

Knowledge of chronobiological patterns can have many pragmatic implications for our day-to-day lives. While contemporary living can sometimes appear to subjugate biology – after all, who needs circadian rhythms when we have caffeine pills, energy drinks, shift work and cities that never sleep? – keeping in synch with our body clock is important.

The average urban resident, for example, rouses at the eye-blearing time of 6:04 a.m., which researchers believe to be far too early. One study found that even rising at 7.00 a.m. has deleterious effects on health unless exercise is performed for 30 minutes afterward. The optimum moment has been whittled down to 7:22 a.m.; muscle aches, headaches and moodiness were reported to be lowest by participants in the study who awoke then.

Once you’re up and ready to go, what then? If you’re trying to shed some extra pounds, dieticians are adamant: never skip breakfast. This disorients your circadian rhythm and puts your body in starvation mode. The recommended course of action is to follow an intense workout with a carbohydrate-rich breakfast; the other way round and weight loss results are not as pronounced.

Morning is also great for breaking out the vitamins. Supplement absorption by the body is not temporal-dependent, but naturopath Pam Stone notes that the extra boost at breakfast helps us get energised for the day ahead. For improved absorption, Stone suggests pairing supplements with a food in which they are soluble and steering clear of caffeinated beverages. Finally, Stone warns to take care with storage; high potency is best for absorption, and warmth and humidity are known to deplete the potency of a supplement.

After-dinner espressos are becoming more of a tradition – we have the Italians to thank for that – but to prepare for a good night’s sleep we are better off putting the brakes on caffeine consumption as early as 3 p.m. With a seven hour half-life, a cup of coffee containing 90 mg of caffeine taken at this hour could still leave 45 mg of caffeine in your nervous system at ten o’clock that evening. It is essential that, by the time you are ready to sleep, your body is rid of all traces.

Evenings are important for winding down before sleep; however, dietician Geraldine Georgeou warns that an after-five carbohydrate-fast is more cultural myth than chronobiological demand. This will deprive your body of vital energy needs. Overloading your gut could lead to indigestion, though. Our digestive tracts do not shut down for the night entirely, but their work slows to a crawl as our bodies prepare for sleep. Consuming a modest snack should be entirely sufficient.

Questions

Questions 1 – 7: Do the following statements agree with the information given in Reading Passage 1? In boxes 1 – 7 on your answer sheet, write:

• TRUE if the statement agrees with the information

• FALSE if the statement contradicts the information

• NOT GIVEN if there is no information on this

1. Chronobiology is the study of how living things have evolved over time.

2. The rise and fall of sea levels affects how sea creatures behave.

3. Most animals are active during the daytime.

4. Circadian rhythms identify how we do different things on different days.

5. A ‘night person’ can still have a healthy circadian rhythm.

6. New therapies can permanently change circadian rhythms without causing harm.

7. Naturally-produced vegetables have more nutritional value.

Questions 8 – 13 Choose the correct letter, A, B, C, or D. Write the correct letter in boxes 8 – 13 on your answer sheet.

8. What did researchers identify as the ideal time to wake up in the morning?

A. 6:04

B. 7:00

C. 7:22

D. 7:30

9. In order to lose weight, we should

A. avoid eating breakfast

B. eat a low carbohydrate breakfast

C. exercise before breakfast

D. exercise after breakfast

10. Which is NOT mentioned as a way to improve supplement absorption?

A. avoiding drinks containing caffeine while taking supplements

B. taking supplements at breakfast

C. taking supplements with foods that can dissolve them

D. storing supplements in a cool, dry environment

11. The best time to stop drinking coffee is

A. mid-afternoon

B. 10 p.m.

C. only when feeling anxious

D. after dinner

12. In the evening, we should

A. stay away from carbohydrates

B. stop exercising

C. eat as much as possible

D. eat a light meal

13. Which of the following phrases best describes the main aim of Reading Passage 1?

A. to suggest healthier ways of eating, sleeping and exercising

B. to describe how modern life has made chronobiology largely irrelevant

C. to introduce chronobiology and describe some practical applications

D. to plan a daily schedule that can alter our natural chronobiological rhythms

Detailed Translation

Chronobiology might sound a bit futuristic – perhaps like something from a science fiction novel – but it is actually a field of study related to one of the oldest processes that life on this planet has ever known: short-term rhythms of time and their impact on flora and fauna.

This can manifest in many forms. For example, marine life is influenced by tidal patterns. Animals tend to be active or inactive depending on the position of the sun or moon. Many creatures, including humans, are primarily diurnal – meaning they prefer to be active during daylight hours. Nocturnal animals, such as bats and possums, prefer to forage at night. A third group is known as crepuscular: they thrive in the dim light of dawn or dusk and remain inactive at other times.

When it comes to humans, chronobiologists are interested in what is known as the circadian rhythm. This is a complete cycle that our bodies are naturally set to undergo within a 24-hour day. Besides sleeping at night and waking during the day, each cycle involves many other factors such as changes in blood pressure and body temperature. Not everyone has an identical circadian rhythm. For example, “night owls” often share that they find it very difficult to work in the morning, but become extremely alert and focused in the evening. This is a benign variation in circadian rhythms known as a chronotype.

Scientists have very limited ability to create lasting changes to chronobiological requirements. For example, recent therapeutic developments for humans, such as artificial light machines or the use of melatonin, can reset our circadian rhythms, but the body can detect the difference, and health will decline when we disrupt these natural rhythms for long periods. Plants seem no more malleable in this regard; studies have proven that vegetables grown in season and ripened naturally on the plant have much higher essential nutrient content than those grown in greenhouses and ripened by laser.

Knowledge of chronobiological patterns can provide many practical applications for our daily lives. Although modern life sometimes seems to override biological factors – after all, who needs circadian rhythms when we have caffeine pills, energy drinks, shift work, and cities that never sleep? – staying in sync with our body’s internal clock remains incredibly important.

For example, the average urban resident wakes up at the bleary-eyed time of 6:04 a.m., which researchers believe is too early. One study found that even waking up at 7:00 a.m. has negative health effects unless you exercise for 30 minutes afterward. The optimum time has been narrowed down to 7:22 a.m.; muscle aches, headaches, and mood swings were reported by study participants to be at their lowest when they woke up at this time.

Once you are up and ready, what next? If you are trying to shed a few extra pounds, dieticians firmly advise: never skip breakfast. This disrupts your circadian rhythm and puts your body into starvation mode. The recommended course of action is to perform an intense workout, followed by a carbohydrate-rich breakfast; if you do the reverse, weight loss results will not be as pronounced.

Morning is also a great time to take vitamins. The body’s absorption of supplements is not time-dependent, but naturopath Pam Stone notes that an extra boost at breakfast helps us feel energized for the day ahead. To increase absorption, Stone suggests taking supplements with food in which they are soluble and avoiding caffeinated beverages. Finally, Stone warns that you need to be careful with storage; high potency is best for absorption, and heat and humidity are known to reduce the effectiveness of supplements.

Drinking espresso after dinner is becoming a tradition – we have the Italians to thank for that – but to prepare for a good night’s sleep, it is better to put the brakes on caffeine consumption as early as 3 p.m. With a seven-hour half-life, a cup of coffee containing 90 mg of caffeine consumed at this hour could still leave 45 mg of caffeine in your nervous system at 10 p.m. It is essential that by the time you are ready to sleep, your body has eliminated all traces of this substance.

The evening is important for the body to relax before sleep; however, dietician Geraldine Georgeou warns that fasting from carbohydrates after 5 p.m. is more of a cultural myth than a chronobiological requirement. This will deprive your body of essential energy needs. However, overloading your stomach can lead to indigestion. Our digestive system does not shut down entirely at night, but its work slows to a crawl as the body prepares for sleep. Eating a light snack is perfectly sufficient.

Key Vocabulary from the Passage

• Chronobiology (n): The study of natural biological rhythms.

• Diurnal (adj): Active during the day. Ex: Humans are largely diurnal.

• Nocturnal (adj): Active at night. Ex: Bats and possums are nocturnal animals.

• Crepuscular (adj): Active at dawn and dusk.

• Circadian rhythm (n): The daily biological rhythm (24-hour cycle).

• Chronotype (n): An individual’s natural sleep-wake preference (e.g., night owl vs. early bird).

• Malleable (adj): Easily influenced or changed. Ex: Plants appear no more malleable in this respect.

• Subjugate (v): To conquer, dominate, or suppress. Ex: Contemporary living can sometimes appear to subjugate biology.

• Deleterious (adj): Harmful or damaging. Ex: Waking up too early has deleterious effects on health.

• Espresso (n): A concentrated form of coffee.

Answers and Detailed Explanations

1. FALSE

• Question: Chronobiology is the study of how living things have evolved over time.

• Explanation: In paragraph 1, the passage clearly states that chronobiology is the field concerning “short-term rhythms of time and their effect on flora and fauna.” There is no information about evolution over time. Therefore, this statement is false.

2. TRUE

• Question: The rise and fall of sea levels affects how sea creatures behave.

• Explanation: Paragraph 2 states: “Marine life, for example, is influenced by tidal patterns.” Tides are the rise and fall of sea levels.

3. NOT GIVEN

• Question: Most animals are active during the daytime.

• Explanation: Paragraph 2 lists three groups of animals: diurnal, nocturnal, and crepuscular. The author mentions that “Numerous creatures… are largely diurnal,” but never claims that “most” animals belong to this group. Due to the lack of overall comparative data, the answer is Not Given.

4. FALSE

• Question: Circadian rhythms identify how we do different things on different days.

• Explanation: Paragraph 3 confirms that the circadian rhythm is a complete cycle occurring “within the passage of a twenty-four hour day.” It repeats every day, rather than dictating different activities on “different days.”

5. TRUE

• Question: A ‘night person’ can still have a healthy circadian rhythm.

• Explanation: The end of paragraph 3 mentions “night people” and concludes: “This is a benign variation within circadian rhythms known as a chronotype.” The word “benign” means harmless, implying that their circadian rhythm is still normal and healthy.

6. FALSE

• Question: New therapies can permanently change circadian rhythms

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