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On Sept. 14, 2020, a new planet was added to the list of potentially habitable worlds in the Solar System: Venus.

There’s a thin line between working hard enough and working too hard. Pushing your body to reach new levels of fitness requires commitment, effort and a willingness to put yourself through intense, challenging workouts on a regular basis.

But more isn’t always better. Without the right balance of rest and recovery you could end up spiralling into a long-term fatigue condition called overtraining syndrome. The condition results in long-term reduced physical performance, and may be accompanied by other physiological and psychological symptoms (such as low mood or poor sleep) – though this isn’t always the case. It can take weeks, months and even years to recover from this condition.

The reopening of cafes has been one of the highlights of relaxed COVID-19 restrictions for many Australians. During lockdowns, long queues for takeaway coffee were testimony to caffeine’s relevance to our lives.

Between 6 and 8 million people worldwide suffer from inflammatory bowel disease, a group of chronic intestinal disorders that can cause belly pain, urgent and frequent bowel movements, bloody stools and weight loss. New research suggests that a malfunctioning member of the patient’s own immune system called a killer T cell may be one of the culprits. This discovery may provide a new target for IBD medicines.

In recent years, the notion of an insect apocalypse has become a hot topic in the conservation science community and has captured the public’s attention. Scientists who warn that this catastrophe is unfolding assert that arthropods – a large category of invertebrates that includes insects – are rapidly declining, perhaps signaling a general collapse of ecosystems across the world.

As time passes, our fertility declines and our bodies start to fail. These natural changes are what we call ageing.

In recent decades, we’ve come leaps and bounds in treating and preventing some of the world’s leading age-related diseases, such as coronary heart disease, dementia and Alzheimer’s disease.

But some research takes an entirely unique view on the role of science in easing the burden of aging, focusing instead on trying to prevent it, or drastically slow it down. This may seem like an idea reserved mainly for cranks and science fiction writers, but it’s not.