Nicotine is known to be the primary addictive component of cigarettes and the first known biomarker to assess smoke exposure 41
Multinational tobacco companies have consistently pointed the finger at local tobacco manufacturers as the biggest contributors to the illicit market
You can identify the infected Cannabis plants by the following symptoms: Twisted or curved leaves Yellow stripes or spots Mosaic patterns Uneven stripes of light and dark green on leaves Curved leaves with yellow stripes or mottling Necrosis Stunting Reduction of Yield and potency However, these symptoms can also be observed due to nutrient deficiencies in plants

Keywords: Salivary pH, tobacco, unstimulated saliva INTRODUCTION Various clinical and epidemiological evidence have been documented regarding the adverse effects of tobacco on oral health.[1] The adverse effects of cigarette smoking and other forms of tobacco are numerous, use of tobacco has been associated with oral mucosa, gingival diseases and dental alterations.[2] Saliva is a complex and important body fluid which is very essential for oral health.[3] Saliva plays a critical role in oral homeostasis because it modulates the ecosystem within the oral cavity.[4] Lubrication of the alimentary bolus, protection against virus, bacteria and fungi, buffer capacity, protection and repair of the oral mucosa and dental remineralization are some of the functions of saliva.[5,6,7] Taking this into account, quantitative and/or qualitative alterations in salivary secretion may lead to local (caries, oral mucositis, candidiasis, oral infections, chewing disorders) or extraoral (dysphagia, halitosis, weight loss) adverse effects.[8,9,10] Resting whole saliva is the mixture of secretions and enter the mouth in the absence of exogenous stimuli.[11] Several studies of resting salivary pH estimate a range of 5.57.9.[12] The pH of saliva is maintained by the carbonic acid/bicarbonate system, phosphate system and protein system.[13] Saliva is the first biological fluid that is exposed to cigarette smoke, containing numerous toxic compositions responsible for structural and functional changes in saliva.[14] Approximately 600 million people use arecanut worldwide in some form and is the fourth most commonly used psychoactive substance.[15] Arecanut contains four major alkaloids: Arecaidine, arecoline, guvacine and guvacoline
