Industrial Robotics Market to Reach US$44.48 Billion by 2020 Owing to Rising Popularity of Industrial Automation. A recently released report from Transparency Market Research (TMR) forecasts that the global industrial robotics market will grow at a CAGR of 6.2% between 2014 and 2020.
Cluster headache: Symptoms. Symptoms of a cluster headache include a severe and recurring headache that occurs on one side of the head and is often focused in and around the eye. Cluster headaches generally start suddenly and occur in clusters of episodes that recur over days or weeks. Each episode can last from 15 minutes to several hours.
Cluster headache is far less common than migraine headache or tension headache. Cluster headaches begin far more dramatically, however, and remain quite unique in their course over time. As the name suggests, the cluster headache exhibits a clustering of painful attacks over a period of many weeks.The pain of a cluster headache peaks in about 5 minutes and may last for an hour.luster headaches begin far more dramatically, however, and remain quite unique in their course over time. As the name suggests, the cluster headache exhibits a clustering of painful attacks over a period of many weeks. The pain of a cluster headache peaks in about 5 minutes and may last for an hour.