AAAS

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  Birth weight is strongly affected by the mother's own diet as a child

  17 Feb 2014: A pregnant woman's diet may have much less effect on her baby's health than what she ate in her own childhood

• Taking your brain for a walk: the secret to delaying dementia

  17 Feb 2014: Regular brisk walking three times a week increases the size of brain regions linked to planning and memory, a study has shown

• Becoming a father linked to reduced testosterone in men – and less sex

  14 Feb 2014:

  Lower levels of testosterone may help men focus more on family commitments and less on looking for new sexual partners

• Baby boys and girls receive different nutrients in breast milk

  14 Feb 2014:

  A mother's milk may contain different levels of nutrients depending on the sex of her baby to meet different growth needs

• Talking to babies boosts their brain power, studies show

  14 Feb 2014: Children whose parents speak to them least fare worst in language tests, lagging behind by up to six months at age two

• Public health warning as cat parasite spreads to Arctic beluga whales

  14 Feb 2014: Whalemeat presents possible danger to humans as Toxoplasma gondii, which can lead to blindness, spreads to thawing region

• Male sexual orientation influenced by genes, study shows

  14 Feb 2014:

  Genes examined in study are not sufficient or necessary to make men gay but do play some role in sexuality, say US researchers

• Do termites dream of robotic bricklayers?

  13 Feb 2014:

  Modelled on termites, robot bricklayers could build structures in places that are too dirty, too dangerous or too dull for humans

• Robotic bricklayers build a castle – video

  Video (1min 56sec), 13 Feb 2014:

  Robotic bricklayers designed by researchers at Harvard University can work without plans to build pre-designed structures

• Dreams of 'self-discovery' destroying marriage, claims psychologist

  13 Feb 2014:

  High divorce rates and low marital satisfaction are a direct result of partners' inability to meet 'psychological expectations'

• Food labelling underestimating calorie content of some foods, scientists say

  18 Feb 2013: Dieters who eat high-fibre foods consume more calories than they think because retailers' calorie count system is out of date

• Paralysed people could get movement back through thought control

  17 Feb 2013: Brain implant could allow people to 'feel' the presence of infrared light and one day be used to move artificial limbs

• Anxiety drug found in rivers changes fish behaviour

  14 Feb 2013: Normally shy perch became bolder and more independent when exposed to a drug called oxazepam for treating anxiety

• Cosmic ray mystery solved

  14 Feb 2013: High-energy particles called cosmic rays that batter the Earth's atmosphere originate in the remnants of supernovae

• Discovery of Higgs Boson rated year's top scientific achievement by Science

  20 Dec 2012: Other discoveries include sequencing DNA from extinct humans, turning stem cells into egg cells and landing Curiosity on Mars

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