Bigger May Not be Better: The average penis size has grown. Here's why doctors are concerned

“Bigger is better” – it’s a commonly believed notion when it comes to penis size. Although it might seem like every man’s dream, the Stanford team is worried that it may be due to exposure to chemicals, sedentary lifestyles and junk food. Also read: How scientists grew the world’s first ‘synthetic’ embryo without eggs or sperm Declining fertility rates According to a previous study published in Human Reproduction Update, average male sperm counts had dramatically declined to half since the 1970s. Due to declining fertility and lifestyle changes, the number of babies born in developed nations has sharply decreased, to the point that analysts worry that a population decline could eventually cause the collapse of the economy, according to Dailymail. The report quoted Dr Phillip Levine, an economist at Wellesley College, as saying that the decline will eventually have a “damaging impact both on social cohesion, general wellbeing, and economic dynamism.” Nevertheless, Dr Eisenberg noted that more extensive research is to be performed in order to understand the causes of these changes.