HeyJaredLinda Geddes
- Indexed articles, last 90 days
- 3
- Latest publication
- Sep 16, 2026
- Outlet visibility, for New Scientist
- Top 50K sites
- Earliest in this view
- Jul 22, 2026
Latest articles
How older siblings may shape sexual orientation via mother’s immune system | New Scientist (opens the original)
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For decades, researchers have known that the more older brothers a man has, the greater his likelihood of being gay. More recently, this has also been linked to having older sisters. Now, a modelling study suggests that the latter link could be explained by older sisters being a proxy for their mother previously having multiple pregnancies, some of which may have involved miscarried male embryos. The scientists have stressed, however, that this is just an idea and further research is needed. Car
Our blood's body clock may be causing anaemia cases to be missed | New Scientist (opens the original)
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A blood test taken in the morning could give subtly different results from one done in the evening, or at a different time of year. The discovery may affect whether people are diagnosed with conditions like anaemia or deemed eligible to donate blood. Anaemia occurs when the number of red blood cells, which contain the oxygen-carrying protein haemoglobin, is lower than normal or if they have too little haemoglobin. Cases are often missed, while low levels of iron or haemoglobin can affect whether
Phone breathalyser can detect when your body switches to burning fat | New Scientist (opens the original)
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If you are trying to lose weight, knowing what fuel your body is burning is largely guesswork. Bathroom scales may take weeks to register any change, and even then, they can’t distinguish between loss of fat, muscle and water. Smartwatches and gym equipment can also only infer whether you are in a “fat-burning zone” from measures such as heart rate. But now researchers have developed a handheld breathalyser that detects whether you are burning fat from a single exhalation. The vital, overlooked
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