In recent years, various types of synthetic cannabinoids have become widely distributed and are causing social and health problems in most parts of the world. Synthetic cannabinoids are currently the largest group of new psychoactive substances. Those that have been subjected to legal control are replaced by newer controlled and uncontrolled substances.

Background: Maternal hemorrhage represents the most prevalent complication and primary cause of mortality during childbirth. Extensive studies have elucidated noteworthy correlations between ABO blood type and cardiovascular disease risk in both genders. Notably, individuals with blood type O exhibit a substantial variation in the formation of the platelet plug on vascular lesions, accompanied by a reduction in von Willebrand factor.

In the previous several years there has been much progress in developing more accurate thixo- lasto- visco-plastic rheological models that can be used to mechanically characterize human blood. In theory as the thixo-elasto-visco-plastic (TEVP) model accuracy and predictive capability improves, the parameterization, as well as insights and parametric correlations will also improve. 

Individuals with spinal cord injury (SCI) have a significantly increased risk for cognitive impairment that is associated with cerebrovascular remodeling and endothelial dysfunction. The sub-acute stage following high thoracic SCI is characterized by increased fibrosis and stiffness of cerebral arteries. However, a more prolonged duration after SCI exacerbates cerebrovascular injury by damaging endothelium.

The primary question of this short communication could be a paradoxical not scientific ‘’why’’. But why? Maybe because, in our modern world, more and more screening of drugs is done in the army, in big companies, in schools, on the road, and so on [1]. The original and logical consequence of this augmentation of screening affects results: indeed, the more we investigate to find drugs, the more we find drugs. Therefore, it appears interesting to wonder the reason why a screening of drugs is being done, for what purpose and moreover, in which samples, urine or only in blood samples. Foremost, remember, that in principle, to get a good answer, we always need to ask the right question.